Chapter 1

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Sneaking through the barn, moving at a snail’s pace, Apple Bloom kept one ear angled to the door and the other ear trained to the upstairs apartment. With Granny Smith, Applejack, Babs, and Little Mac away from the farm, visiting their extended family in Manehattan for the month, she was afforded a rare opportunity to sate her budding, unquenchable desires. She’d hugged Big Macintosh goodbye not ten minutes ago, before he’d left for town to get supplies, and immediately put her hastily, hormonally charged plan into play.

Up the stairs and through the front door, moving as quietly as she possibly could, she crept into her brother’s home and slowly moved through his living room. Though she felt a pang of regret for doing something so dubious, she simply couldn’t help herself. Being a lust-addled teenager, filled with all the righteous fury of a mare just coming into her prime, she had an itch that desperately needed scratching - an itch that only her big, virile, and beefy sibling could scratch.

As she reached his room, she paused. There was no way he was inside his chamber, having seen him off just a short time ago, but violating his sanctuary gave her a moment’s doubt. It would have been bad enough sneaking around behind his back, yet her self-serving motives made the task all the more difficult - that was until she happened to notice just what she was looking for. Her eyes settled on a pair of discarded briefs lying beside a dirty clothes hamper, causing her mouth to water.

She’d been interested in stallions since she hit puberty, though that interest had grown into an overwhelming lust as of late. Dating had done little to satisfy her urges, since both of her past relationships had been with guys who were too timid for her tastes, which had steadily driven her into a frenzy. As far as she was concerned, there was only one stud who checked every box on her list of potential partners, and she just so happened to see him each and every day.

Kneeling beside the bed, she reverently plucked the sullied underwear from the floor, lifted it to her face, and drew a deep breath through her nose. She’d been around her big brother for long enough to know just how good he smelled, especially after he’d worked up a good sweat, yet this was the first time she’d been so brazen as to sample the scent of his loins. The second his powerful musk tickled her sinuses, the deepest, most primal parts of her id went alight.

Throughout the entirety of her relatively short life, she’d never once met a stallion as perfect as Big Mac. A gentle giant, her sibling was easily the strongest and most well-built pony in all of Ponyville - heck, maybe even all of Equestria! Though his sheer size and build could be imposing to the uninitiated, he was honestly one of the kindest ponies around - that being said, she knew full well what he was capable of.

Ever since Babs had come to stay, after he’d inadvertently knocked her up at her graduation party, she’d been unable to stop herself from spying on the happy couple’s moments of intimacy. Even though they tried to keep their amorous affairs relatively quiet, the sound of two earth ponies going at one another like savage beasts in heat was impossible to avoid and, as such, she almost always knew when the two were making love.

She couldn’t count how many times she’d rubbed one out while listening to her brother plowing her cousin, and she’d peeped on them a good number of times as well, but that had only made her situation worse. Unfortunately for her, she’d reached a point where simply getting herself off didn’t do the trick; she wanted - no, needed something more substantial than that. Her sinful little scheme, concocted after hearing that most of her family would be away from the homestead, would hopefully satiate her licentious longing, and so she’d waited for just the right moment to enact it.

Draping his undies over her muzzle, flooding her nostrils with the potent, almost overpowering bouquet of his loins, she flicked open her boy shorts and slipped a hand to her nethers. Despite having been in her brother’s room for less than a minute, her marehood was positively dripping. As she wantonly crammed a trio of digits into herself, wearing his briefs like a depraved mask, she rested her back against the bed and caressed one diamond-hard nipple.

A small part of her felt bad for doing something so questionable - then again, the sheer unfairness of the situation bolstered her resolve. Babs was bigger than her in every possible way, from her stature and build to the size of her ass and rack, but it hadn’t always been like that. Before her cousin had gotten knocked up, she’d had a more impressive chest and derriere; much to her dismay, that all changed once the oafish mare had got an oversized bun pumped into her oven.

In short, Babs had flowered into a top-tier MILF seemingly overnight. With a pair of impressive sweater puppies, and a bit of pudge in all the right places, her cousin’s development and scandalous relationship with her brother had done nothing but fuel her jealousy. It wasn’t her fault that she was short, had a modest bust and unremarkable rump, and was a year younger than her kin, so she felt entitled to just a sliver of her sibling’s sexual energy.

“Oh gosh, Mac,” she groaned to herself, shoving a fourth finger into herself.

She’d only just become old enough to legally buy sex-toys, though her lack of funds or a place to procure such perverse goods left her wanting. While she could have sweet talked her way into getting a lay, taking advantage of one of her equally horny classmates, she knew it would be an almost laughable substitute for her burly brother. All but fisting herself, absentmindedly moving one hand beneath her shirt to play with her perky tits, she closed her eyes and envisioned being bedded by the carmine behemoth.

Having seen Mac’s package on several occasions, both in casual and lewd circumstances, she knew all too well how he’d earned the big part of his name. Simply put, her brother’s cock was more akin to a divine work of art than a simple appendage. Nearly as big as her arm and thicker than her wrist, his stallionhood sat at the apex of endowments - at least, it was as far as she was concerned.

Leaning back and bucking into her hand, she wriggled her hips and attempted to loosen her shorts. The affair would have been significantly easier if she’d stripped down, yet that would have been a dangerous move. Should Mac return home sooner than expected, she’d have to get dressed in a jiffy and come up with an excuse regarding why she was in his abode; she’d already concocted an alibi for such an event, justifying her presence by claiming she was looking for pictures of her nephew to share, but being caught with her pants down would be inexcusable, especially if she was discovered feverishly finger-fucking herself.

She could only imagine what it would be like to spend a night with him. Feeling his chiseled body against her, having him pin her to a bed and screw her into a coma, or even being able to lick his cum and her juices from his length were quite literally the stuff of wet dreams, and she’d washed her sheets enough to know. Engrossing herself to the fantasy, softly panting and caving to her passion, she was wholly ignorant to the sound of a closing door.

Mac grumbled to himself, cursing his memory for forgetting his wallet. He’d hoped to head into town to buy a few things, including some dinner for himself and Bloom, yet he’d headed off before checking his pockets. Famished from a day of hard work and frustrated from nearly two weeks of abstinence, since his lover was away, he marched up the stairs, into his living room, and towards his bedchamber.

Approaching his room, he slowed and cocked his head. He could’ve sworn he’d left the door open, since he typically only closed the thing when he was getting frisky with Babs, yet it was inexplicably pulled to. Dismissing the thought that someone was foolish enough to disturb the sanctity of his chamber, he stepped inside, flicked the lights on, and froze.

Resting against the bed, with her legs lewdly parted, was none other than his little sister. Finding her in his room would have been strange, but it didn’t take him long to realize exactly what she was doing. Wearing a dirty pair of his underwear like a mask, with one hand in her dampened shorts and the other up her shirt, she locked eyes with him. The situation was more than shocking, not for the least of which reasons being he’d never expected to stumble upon her in such a compromising state, and it left him reeling.

“M…M…Mac?” she stammered in disbelief, her mind clouded by her carnal wants.

Either she was experiencing some sort of lecherous hallucination or her brother had just walked in on her furiously masturbating to his undies - regardless, she struggled to comprehend what was happening. If the goliath had actually returned home so quickly, she felt certain she would have heard his lumbering footfalls, whether she’d been getting off or not, so she considered the alternative; if she was having some sort of suffering from sort of perverse delirium, well, she may as well see how immersive the experience was…

Rocking forward and onto all fours, letting his briefs hang from her neck like an indecent collar, she crawled over to his statuesque frame. He towered over her at all times, even when she stood on her tiptoes, so her penitent position made him feel even larger and more gargantuan than he already was. Reaching his feet, steadily rising to her knees, she ran her hands up his muscular thighs and to the enormous swell at his groin.

As her fingers graced the titanic swell under the denim of his jeans, she felt her pulse quicken. It was no mystery that he was packing some absolutely massive equipment, yet the heat of his dick against her palm, bleeding through the all too thin fabric, was enough to make her marehood angrily clench in anticipation. Wasting no time, flicking the button above his zipper, she pulled open the front of his pants and revealed the white cotton of his underwear.

The fact that he hadn’t budged or said a word lent weight to her assumption that she was imagining the encounter, spurring her onward and fanning the roaring inferno of her passion. Like a filly opening a gift on Hearth’s Warming morning, she steadily hauled his jeans past his hips and down his upper legs. Licking her lips, while his slacks fell around his ankles, she hooked her fingers over the waistband of his briefs and began to pull.

The garnet-colored root of his stallionhood appeared, followed by inch after magnificent inch of his shaft, causing her pace to quicken. He wasn’t even fully hard, yet it seemed like there was no end to his length! It was only after she’d brought the undergarment to his mid-thigh, clearing his groin, did the entirety of his tool spring free. To say she was awestruck would be an understatement, as she found herself face to face with the absolute behemoth that was his member.

Gazing longingly at his bare flesh, she drank in the sheer enormity of what he had to offer. A pronounced vein snaked along one side of his dick, his weighty nuts hung between his thighs, and the battering ram-like tip of his cock gradually rose towards her muzzle, yet those were only a part of the all-too-captivating experience. With his pants and underwear out of the way, the aroma of his loins struck her like a gong.

It may have sounded silly, but the smell and subtle warmth radiating off the stud’s body was vastly more potent than the scent which clung to his sullied briefs. Leaning in, very much in a trance, she caressed her cheek against his length and pressed her snout to the musky nexus between his endowment and ripe nuts. He was all hers, and she was going to do everything in her power to relish the monumental event.

Mac stood motionless, unable to do anything but watch his little sister venerate his package. Finding her masturbating to his underwear had been more than a little startling, yet having her spontaneously crawl over and begin worshiping him left him at a loss - still, as confused and anxious as he was, all the amorous attention stoked the flames of his stallionly desires. Subconsciously reaching for her head, with his body acting before his mind fully grasped the gravity of the situation, he pulled her forward and buried her nose in the flesh folds of his sheath.

The encounter was even more scandalous than when he’d first fooled around with Babs, yet his deep-seated, primitive urges were too much to bear. He’d already bedded and bred one family member, having gone so far as to rear an offspring with her, so helping himself to a second couldn’t be too much worse - could it? Feeling her hands sail to his hips, he watched her pull back and draw her tongue up his rapidly hardening shaft.

Unlike Babs, who was remarkably assertive in every facet of her life, Bloom was a bit more reserved - adventurous and willing to try new things, but reserved nonetheless. Whatever had gotten into her, she was clearly worked up and had him on her mind; in and of itself, this wasn’t a bad thing, but having effectively been blue-balled for the better part of a month greatly weakened his ordinarily stalwart resolve. As she leaned back and all but made out with the head of his cock, gazing up at him with her heavily lidded eyes, he reflexively bucked his hips.

Bloom gagged, her heart skipped a beat, and the depths of her sex seized upon itself, as he plunged into her muzzle. The sheer force of the move was enough to choke her outright, yet she did not recoil in the slightest. Tasting the sweat against his velvety skin, all but feeling the raw passion of his thrust, and sensing him throb against her tongue was all the inspiration she needed to commit herself. Ramming her head forward, forcing him down her chaste gullet, she quite literally choked herself on his softly pulsing length.

She’d dreamed of this moment for years, but she’d never once considered it would come true. Staring up at his face, in spite of her watering eyes, she reached for her crotch. Be darned if she wasn’t going to enjoy every second of fellating the glorious, godly stud, and she couldn’t care less what he thought of her ambitions. Feverishly toying with her clit, fighting through the discomfort of her stretched lips and strained esophagus, she pawed at her bulged throat.

It didn’t matter if she was imagining the entire event - the only thing she cared about was pleasing her adonic brother with every iota of her insignificant skill. Since she’d only ever gotten frisky on two occasions, sucking off and subsequently being rutted by one of the colts in her class, her experience with carnal affairs was direly lacking - nevertheless, her zeal and enthusiasm more than made up for her amateurishness. Driven by the overpowering might of her desires, she forced his shaft down her gullet.

The intensity, spontaneity, and pleasure of fulfilling one of her most guarded fantasies was enough to get her off, yet she failed to anticipate just how arousing it was. Her throat convulsed around him, tears streamed down her face, and marish nectar gushed from her spasming marehood, as she was wracked with an unforeseen and nearly catastrophic climax. Lost to the blissful sensations accosting her, while her vision began to tunnel, she was spared an ignominious fate.

Seeing her eyes flutter, realizing his little sister was on the cusp of passing out, Mac grabbed her shoulders and withdrew. It was one thing to let her sate herself with him, even if he was still unsure of how to feel about it, but he was not about to let her black out with his dick down her throat. Simultaneously stepping back and kneeling down, while he pushed her away, he brought himself to her eye level.

“Uh -” he falteringly began, seeing some lucidity come back to her, “are you ok?”

“Ah’m - Cough -” she croaked, wincing and swallowing down a cocktail of saliva and his pre-cum, “Ah’m fine! Ya didn’t have to stop!”

Churlishly turning her head, she scrunched her snout. Honestly, she wouldn’t have minded if he’d taken a more active role in the all-too-brief bit of oral, fucking her face like she was some common whore, yet he’d done the exact opposite. Glancing over at him, seeing the look of concern plastered on his handsome face, she knit her brow. She knew she should feel bad for making him worry, but his unease did little more than make her frustrated.

This was her moment with him, he was supposed to take advantage of her and ruin her for any other stallion, yet he had the gall to fret about her well-being? Not if she had anything to say about it. He already knew she had the hots for him - that or being discovered rubbing one out while wantonly sniffing his undies had flown over the big lug’s head - and she’d gotten a taste of his exquisitely terrifying cock. There was only one thing he could do to make it up for her, and she had every intention of goading him to get it.

Batting his hands away, freeing herself from his gentle grasp, she got to her feet and stood. If there was one thing she’d learned about her sibling, having keenly watched how he interacted with her stupid older cousin, it was that he had a soft spot for being provoked. Stepping to the bed, she cast herself onto the mattress with a soft Pomf, rolled onto her back, and lifted her legs.

If having a mare shamelessly present herself to him was what it took to get his motor running, that’s exactly what she was going to give him. Grabbing her ankles and pulling them back, using her youthful pliability to its full benefit, she displayed her winking, slavering marehood in the most slatternly fashion she could imagine. Feeling the warm juices of her arousal creeping down the cleft of her ass, over and around her taut, virginal pucker, she gnawed her lip and peered down her chest at him.

“Since ya ain’t got it in ya to dump a load inta mah stomach,” she purred, putting on the best come hither voice she could muster, “how ‘bout ya come over here and plow my field…”

Mac considered himself a worldly, albeit humble stallion. He’d seen all sorts of inexplicable and at times horrifying things in his day, ranging from nigh-omnipotent battles between demigods to the befriending a literal deity of chaos, but nothing could have prepared him for the sight of his very own sister inviting him to fuck her. His mouth watered, his stallionhood was so hard that it hurt, and thoughts raced, as he did his best to wrap his head around what was happening.

She’d made it painfully clear what she wished for, yet some small shred of his dignity and better judgement pleaded with him not to give in - sadly, he was losing ground to his impulses. She was a young, healthy, fertile mare, one who’d just asked him to screw her brains out, and he was having a hard time finding an excuse not to indulge her. It was no secret that his family tree circled around a few times, with his very parents being distant kin, so giving her what she wanted wouldn’t be the worst thing in the world.

As if moving of its own accord, one foot stepped forward, followed by the second, until he was looming over her at the bedside. Situated like she was, in such a vulnerable state, he drank in her figure. Broad, foal bearing hips that rivaled or even eclipsing his mate’s, a respectable pair of tits, and her pleading expression all chipped away at his resolve, but the rosy lips of her meaty and snug-looking marehood - stars above, he shivered at the thought of how tight she must be.

Leaning forward and grabbing her by the waist, pulling her ass to the very edge of the mattress, he straightened up, grabbed the base of his cock, and slammed his stallionhood against her groin. It seemed reasonable enough to let her know what she was about to get into - or rather what was about to get into her, so he draped his dick over her abdomen. If she didn’t have a change of heart, seeing that his dick would nearly reach her rib cage, well, he might just have to let her experience what Babs got on a regular basis.

Swallowing hard, Bloom stared down the cannon-like length of his stallionhood. The tip of his cock came to rest on her sternum, reminding her of just how utterly titanic his endowment really was. The rational part of her brain screamed at her to stop, to politely bow out and reconsider finding a stud who wouldn’t rearrange her insides, but the deeper portions of her psyche cheered her on, telling her that if her boorish cousin could handle him, her very own brother, so could she.

Slipping her hands down her thighs and to her groin, she spread her marehood open, forced a cocky smirk, and winked up at him. “Ah can guarantee that I’m a whole lot tighter than Babs…”

The statement, while factually correct, was the best sort of intimate enticement she could think of, and it immediately did the trick. Stepping back, dragging his prodigious tool down her belly and neatly shaved crotch, he brought the head of his dick to her entrance. It felt like a fist pressing against her cunt, prompting her to gulp yet again. Swiftly grabbing her ankles once again, pulling her feet to either side of her head, she screwed her eyes shut, exhaled her held breath, and prayed she’d be able to handle him.

Sure enough, the pressure on her snatch mounted. It was like squaring off against a glacier, slow but nigh unstoppable in strength, so all she could do was try to stay relaxed. As the strain on her entrance increased, subconsciously causing her to set her jaw, she momentarily considered massaging her clit or playing with her nipples, if only to serve as a pleasant distraction, though the thought lasted only a fraction of a second. Seemingly out of nowhere, catching her completely off guard, her undertaking bore fruit.

Something gave way and nearly two-thirds of his stallionhood instantly slammed into her canal. The sensation of something so big filling her so quickly was more than she could endure. Her mouth flew open, her eyes rolled wildly to the back of her head, and marish nectar squirted from around his entombed length, as she came with all the devastating force of a tsunami. How anyone could withstand something so mind-boggling was beyond her, and he’d only just stuck his dick inside of her! Willing herself to stay conscious, forcing her trembling hands to hold her lower limbs in place, she fought through the tide of rapture.

Mac smirked at her reaction, yet he gave her a minute to recuperate. It wasn’t the first time he’d made a mare squirt simply by penetrating them, and it was the second time he’d had it happen with a family member, so he knew enough to let her savor it. Seconds passed, her quaking gradually abated, and he shot her a questioning look; her faltering nod was all the reassurance he needed, prompting him to roll his hips back.

Seeing her rosy interior clinging to him, almost as if she was fighting his retreat, was one of the hottest things he’d seen in ages. Fully aware that he wasn’t dealing with Babs, a mare who could and often would vie for dominance in the bedroom, he took his time and eased his colossal stallionhood into his sister. Peering down at her belly, watching the imprint of his cock lazily move up her torso and past her navel, he relished the vice-like feeling of her silken interior.

He figured she’d be pretty tight, yet he’d failed to predict just how taut her marehood was. Carefully administering just enough force to continue, moving deeper and deeper, he only stopped when he bottomed out. He was actually amazed about how accommodating she was, given her meager size, which did little to quell his mounting lust. Bending forward and resting his hands on her thighs, driving her legs further back, he set to plowing her at a leisurely pace.

It took more concentration than he cared to admit to keep himself from pulling out the stops. Not only was she the smallest mare he’d ever been with, but he was her cherished sibling - both facts that paradoxically got his blood pumping and made him reluctant to go all out. Grappling with his natural tendency to conquer, a trait Babs had instilled in him, he unwittingly increased the speed of his pounding hips.

Drool crept from the corners of her mouth, her refractory period all but vanished, and whorish groans escaped her with each thrust, as Bloom’s mind went blank from the pleasure. Be it from the enormity of living out a fantasy, having her marehood stretched to the breaking point, being fucked by her brother, or knowing that she’d more than likely damned herself to only ever be satisfied by only exceptionally well-hug stallions, or some combination of the four, she fixated on the rapture her brother afforded. Hooking her elbows around her knees, keeping her lower limbs in place, she masochistically pulled and tweaked her nipples.

Even though it wasn’t her first time being bedded by a stud, she may as well have been a virgin. The difference between her past fling’s stallionhood and Mac’s was night and day, making her only prior lay feel almost pathetic in comparison to the wondrously intense pleasure her elder sibling afforded. With the breath hitching in her throat, teething on the brink of another climax, she twisted her teats and pushed herself to her limit.

“Ah…Ah’m gonna - Nnnnnghaaaa,” she wailed, sailing over the edge.

Her toes curled, marish juices lewdly squelched from her pummeled cunt, and she howled out in bliss. Though she’d cum only a few minutes prior, the second orgasm was as or more intense than the first, threatening to rob her of her waning sanity. Try as she might, the ecstasy robbed her of strength, leaving her arms to fall limply by her sides; she would have been bothered by her lack of self-control, had the titan’s hastening tempo and increasingly forceful plunges assured her that he was far from finished.

Despite his best efforts to curb his enthusiasm, his little sister’s second orgasm drove Mac into a frenzy. His muscles tensed, as each thrust drove her into the mattress. Hailed by her slatternly mewling, milked by the contractions of her spasming depths, he snorted imperiously above her. There was only so much provocation a stallion could endure, and he’d been pushed past the threshold of his waning discipline.

The orchestra of the groaning bed frame, feminine whimpers of delight, and sonorous grunts echoed through the room and out of the apartment, mirroring the sinful symphonies of many nights before, but this was different - this was an epoch. Though both knew they’d crossed a line, enacting a taboo nigh unspoken of in society, neither Mac nor Bloom could have fathomed the gravitas of what they’d done. Unbeknownst to either the hulking stallion or the svelte mare, they each left a mark on one another - a mark which would ultimately shape their future.

Breathing in his sibling’s delicate scent, the smell of sweat, and the aroma of hot, bestial sex, Mac reached a tipping point and was left with two options; he could pull out and douse her with his load, painting her body with his thick, rich spunk, or he could bury himself as deeply as possible and despoil her like none ever had or possibly ever would. The decision took less than a second, with his faculties reduced to only their baser functions, and so he moved on autopilot. Leaning forward, locking her arms under her legs, he plunged his entirety into her.

The sensation of her womb being breached, her cervix giving way and clamping around his pulsing length, drove her to a third climax, but the sensation of his seed flooding into her, filling her foal-factory with an unimaginable amount of seed fractured some fundamental part of her mind. To say she had a fourth climax couldn’t be accurate, so great and unimaginable was the experience of being bred by a paragon of masculinity, yet it was the only word that came close to describing the experience. Braying like a beast possessed, slipping into the oblivion of a sea of pure, unrefined rapture, she lost consciousness with one final, ineffable thought - she was going to be a mother.

Groaning and steaming the air, while his hips fitfully twitched and bucked, Mac ensured every drop of his precious essence was deposited within his mate. Slowly but surely, with his bliss gradually replaced by a warm sense of euphoria, his senses returned and brought with them a number of jarring realizations. First and foremost, at some point or another, Bloom had blacked out - secondly, having released her legs to push himself up, she looked positively gravid with his jizz - thirdly, but possibly most importantly, he grasped that there was a very real likelihood that he’d just knocked his sibling.

Rocking back and dragging his softening length from her quivering marehood, he watched a small tide of cum surge from her battered entrance - still, even after the effluence subsided, she could easily pass for being pregnant. Feeling his heart starting to race, he looked about in a panic. If Babs found out he’d cheated on her, he’d be dead - if AJ found out he’d fucked their sister, he’d be dead - if Granny found out he’d plowed her grand daughter, he’d be dead - irrespective of the circumstances, if any of his family found out what he’d just done, he would be well on his way to an early grave. Thinking fast, he scooped up his comatose sibling and rushed to the bathroom.

As he stepped into the tub and kicked at the faucet, he fumbled for the shampoo with his free hand. If he got her cleaned up, back on her feet, and possibly pleaded for her to keep her mouth shut about the ordeal, he might - might just get away with only a guilty conscience. Seeing her stir and look up at him, with water streaming down her face, his spirits momentarily lifted - that was until he saw her reach down and caress her distended belly. Her words sent a chill through him, both on a physical and psychological level, and rang through the washroom like a death knell.

“Ah’m gonna be a mom!”

Chapter 2

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Mac steadily lumbered through town, sluggishly making his way from one of his many stops to the other, though his thoughts were far from the errands he’d neglected from the day prior. The excitement of spontaneously making wild, passionate love to his little sister had died, replaced by a deep-seated, existential conundrum that had occupied him throughout the night and into the morning. He loved and cherished Bloom with all his heart, but his fling with her had made him question how he cherished her.

He’d watched her grow up, guided through her childhood, and seen her blossom into an attractive, lovely young mare. While he’d never thought he’d look at her as anything more than a sibling, her confession to him, paired with the fact that there was an all too real chance he’d put a bun in her oven, had resonated with some dormant or possibly suppressed part of his mind. He’d never dreamed of viewing her as a lover and potential mate, yet he couldn't stop thinking about elevating their relationship to a romantic level.

“Watch it,” a stallion grunted, narrowly avoiding the ponderous titan.

Grunting his apologies, Mac entered the town hall and moved towards the receptionist’s desk. Regardless of how he dealt with the pickle he’d put himself in, there were things he needed to do. He’d already secured an order of feed for the chickens and pigs, he’d pay his bills shortly, and his final stop of the day would be to pick up a few groceries, yet knowing he’d be seeing Bloom within a few hours and, if his intuition was anything to go off of, he’d have to address their activities from the night before.

He knew full well that she wouldn’t cause him any trouble, outside of possibly asking for a repeat performance of their amorous evening, and that she’d more than likely respect his wishes to refrain from any such taboo fraternizing in the future - no, his real concern was how he was going to react to talking with her again. No matter how things played out, a part of him was tempted to indulge her incestuous fantasies.

Aside from his personal angst about the taboo development with his sister, he’d eventually have to worry about Granny Smith, Applejack, and Babs learning about the affair. Granny would more than likely roll her eyes and try to sweep it under the rug, having dealt with familial canoodling in the past, but AJ and Babs would be wild cards. For all he knew, the mother of his child might abandon him and take their son back to Manehattan with her.

Shaking his head and clearing his thoughts, he dug into his pocket to retrieve his wallet and the tax bill he’d brought with him. Irrespective of how his family reacted, he’d be left twisting in the wind until they got home. The trio, as well as Little Mac, still had just over a week before they returned to the farm, and there was no way in Tartarus he was going to tell them about it remotely, so he’d have to wait until they got back. As he counted out the bits and handed them over to the registrar, he couldn’t help but wonder how his little sister was handling the situation.

Traipsing through and out of town, moving in the opposite direction of the homestead, Bloom pressed into the Everfree forest. Considering everything that had happened with her big brother, there was no way she’d be able to concentrate and sit through classes - as such, she decided that a day of hookie would be prudent. There weren’t many folks in Ponyville she could comfortably talk to about her feelings for Mac, or that she secretly wished to harbor his foal, but there was one mare who might just be able to help her out.

Her excursion through the woodland was short, since she’d made the trek on several occasions before, and it took her roughly half an hour to reach her destination. Walking up to a gnarled, massive tree, the only one of its kind in the forest, she stepped up to the rounded door and issued a resounding knock. If there was one pony who’d be able to help her out, if only with some sage, non-judgemental advice, it would be…

“Zecora!” she bleated, as the door swung open to reveal the tall, mohawked zebra.

“Apple Bloom?” Zecora inquired, cocking her head to the side. “It’s odd of you to skip your studies, particularly without your buddies…”

“Yeah…” Bloom trailed off, hanging her head. “A…Ah wanted to talk to ya about something. May Ah come in?”

Stepping aside and opening the door, the striped mare waved a hand inside. “Come inside and have no fear, I will lend you my thoughts and ear.”

Bloom nodded, saw herself in, and seated herself in the living room. She had to confide her feelings in someone, and the skilled, sympathetic potion-maker was the best option she had - well, for the time being. Sweetie and Scootaloo were both in class, she definitely didn’t want to spill the beans to Mrs. Cheerilee, and both Applejack and Babs were away, leaving her with perilously few options for ponies to talk to. As her host trotted in and sat beside her, bearing a comforting smile, she took a deep breath, steeled herself, and let the cat out of the bag.

She didn’t just talk about the moment of intimacy she’d shared with Mac, but also the feelings she’d harbored for him since being a little filly. While it was a bit odd to profess her somewhat atypical love for her brother, she found herself growing increasingly comfortable as the minutes passed on. For her, the mountainous, tacit stallion that was her eldest sibling was a paragon of masculinity, wonderfully charming, and an all-around perfect pony; it wasn’t her fault that she’d grown increasingly enamored with him over the years, but the impetuous and passionate moment they’d shared had made her realize that she was meant to be with him.

Zecora sat and quietly listened, only interjecting with the occasional question here or there. As Bloom went on, her unease evaporated and she grew more and more comfortable - to the point where she ended up a bit too excited. Grinding her thighs together, with her marehood dampening her panties, she only came to a stop when her host held up a hand.

“I may be able to assist with your large romantic tryst,” the zebra announced, steadily getting to her feet. Crossing the room and to a standing cabinet, she retrieved a small phial of opalescent liquid, returned to her guest, and offered the potion. “With this brew, Mac’s seed will take and show him that your love’s at stake.”

“So,” Bloom began, taking the bottle from the mare’s hand, “this’ll make him love me?”

Shaking her head, Zecora lifted a finger. “It will not make him love you, Dear, but it will make your intention for him quite clear.”

Bloom marveled at the elixir for a moment, digesting the alchemist’s words, before unstopping the phial and downing the contents with two long swigs. If the potion could do anything to help her, regardless of how trivial or inconsequential it was, she’d be more than willing to give it a shot. Turning her head up and shaking the final few drops into her open muzzle, ensuring she got every last bit of the stuff into her mouth, she swallowed and sat the bottle down.

“Alright,” she hummed, quirking her brow, “now wha-”

Her question fell off, feeling a strange warmth grow within her chest. Peering down at herself, wondering what in the world was going on, she felt her shirt shrink - no, it wasn’t her shirt that was shrinking, it was her bust that was growing. Bolting to her feet, alarmed with how quickly the concoction was having an effect, she gnawed her lip and suppressed a rather unbecoming moan.

It wasn’t like she had much experience with potions, never having taken one herself, but she’d seen their effects on others - still, the speed and force with which the elixir struck her left her dumbfounded. Turning in place, trying and failing to watch herself, she marveled as her body steadily transformed. Though she stayed the same height, so far as she could tell, her chest, hips, and backside gradually expanded to several times their normal size.

“I…is this - Oh buck - supposed ta feel this good?” she bleated, clutching her ever-expanding bosoms.

“A bitter drink I would not make,” Zecora snickered, eyeing the girl’s massive mammaries, “for my customers to partake. If your affection, he does return, you may just have a bigger concern…”

Bloom had been about to ask what in the hay that meant, but then she felt a peculiar sensation on the front of her shirt. Pawing at her chest, feeling wet patches of fabric over her teats, she swallowed hard. She’d hoped that her time with Mac would bear fruit, but she would never have guessed that she’d start lactating out of the blue. While she hadn’t felt embarrassed while waxing poetic about her sibling, her sudden metamorphosis made her extremely self conscious.

“Y…ya mind if Ah come back later?” she stammered, keenly aware of her throbbing, winking marehood. “Ah s…should probably get home…”

“By all means, don’t linger here - that being said, please mind your rear,” the zebra smoothly intoned, glancing at the young mare’s enlarged derriere.

Nodding her thanks, feeling herself blushing, Bloom scampered out the door and into the forest. Of all the possible outcomes for her visit to the sage, exotic woman, she had not expected to be leaving in such an unseemly state. Her shirt struggled against her then expansive bust, her shorts had practically been devoured by her rotund rump, and her gate was more than a little awkward, while she weaved her way down the path and back towards town. The good news was that she was no longer worried about potentially courting her brother - the bad news was that she had to get home before anyone noticed how slatternly she looked.

Fortunately for her, since she was very familiar with the area, she was able to skirt Ponyville without incident. She and her friends had spent many a day exploring the area, both in and out of town, so she was acquainted with a number of rarely-used paths and routes to get her back to the farm. While it wasn’t exactly an easy hike, made all the more difficult by adjusting to her newfound proportions, she made it home in less than an hour.

As she awkwardly jogged closer to the homestead, she slowed. She couldn’t say why it hadn’t occurred to her before that moment, but she only then realized that her wardrobe would no longer be adequate for her figure; pilfering a few garments from Applejack’s dresser might do the job, since her sister was considerably larger than herself, but there was an option that would almost definitely work better. Altering her course, she rushed into the barn and up the flight of stairs to Mac’s apartment.

With his errands complete, carrying two bags of provisions over his broad shoulders, Mac crested a hill and spotted his family home. The morning had been a haze, but he’d manage to accomplish his goals without any problems. He guessed it was nearly time for his little sister to return from school, judging by the sun dipping towards the horizon, which both elated and terrified him.

While his jaunt into town had been a small distraction, it had ended all too quickly and left him right back where he’d started. He honestly wasn’t sure what to say or do with Bloom, so he resigned himself to playing his afternoon by ear. If Bloom wanted to talk with him or press the issue of being more than siblings, he’d think of something - if not, despite his barely suppressed desire to give himself to her, he’d let the matter lie.

With a heavy, sullen sigh, he loped into the barn and up the stairs. Before his little sister got home, he’d have to unload the groceries, both for himself and a few supplies for the main house, and start cooking something for them to eat. Bloom’s actions notwithstanding, they’d need some dinner and, if he could dredge up the willpower, maybe a small dessert.

Seeing himself inside, he proceeded through the den and to the kitchen - that was until he realized the door had been unlocked. Someone was in his house, and a nagging feeling in his gut told him exactly who it was. As he sat his purchases down, quietly swearing to himself, he prayed he wasn’t about to get a reenactment of events from yesterday’s afternoon.

He realized Bloom was thirsty as all get-out, but he was not about to make finding her rubbing one out to his dirty laundry a habit. The day before, he’d been caught with his pants down, all but literally, but this was different; this time, he was going to fully prepare himself for the worst. Stomping through the apartment and to his room, forcing himself to don a displeased look in advance, he barged into his room, preemptively lifted his finger, and stopped dead.

His mind reeled, his jaw hit the floor, and every ounce of potential vitriol drained from his spirit, seeing who stood nude by his bed. He recognized Bloom by her face and uniquely styled mane, but her physique left him in a bizarre state of confusion and arousal. Her bust had ballooned to nearly triple its original size, with both her udder-like teats dribbling milk to the floor, but that was only the start of the erotic esotericism.

To put it bluntly, she had somehow become a drop-dead bombshell. Bearing curves that could and in all likelihood would make a whore blush, his once modestly proportioned sister blankly looked back at him. Trying in vain to figure out what in the hell was going on, woefully ignorant to the blood surging to his gradually stiffening stallionhood, it was all he could do to stare in open awe at his sibling.

“Mac?!” Bloom squawked, cursing her unimaginably bad luck.

Wheeling around, she grabbed a clean t-shirt she’d purloined from his dresser, slipped into the nearly fitting garment, and pulled it down to cover her nethers. It wasn’t like she was that bothered with him seeing her naked, especially considering that they’d fucked like rabbits, but she’d only had her enhanced physique for such an insignificant amount of time. Crossing her arms over her chest, covering the whetted cloth over her leaking teats, she knit her brow.

“What are ya doin here?” she asked, doing what she could to seem irate.

Closing his mouth and apparently gathering his thoughts, he pursed his lips and piqued a brow in consternation. To be completely fair, her question had been a bit impertinent, since she was in his room and all, and her indignance faded in an instant. All but wilting under the pressure, feeling bad that she’d been caught fiddling with his clothing a second time, she hung her head.

“Sorry, Ah know Ah shouldn’t be in here,” she murmured, kicking at the carpet. “If’n you’re wondering about - Nnnph - these,” she grunted, hefting one gargantuan breast in each hand, “well, Zecora gave me a potion to help with - uh -”

She cut herself off, unsure of whether or not to divulge the intention of her meeting with the zebra. While she didn’t want to lie to Mac, openly proclaiming her unfettered love for him, as well as her aspirations to have him sire a second foal with her, may not be the best idea. Momentarily stewing on what to say, with her better judgement warring with her desires, she ultimately decided to follow her heart.

“Ah…Ah…” she faltered, clenching and unclenching her fists, “Ah love ya, Mac - not like a brother, but like the perfect stallion that ya are.” Edging closer to him, holding her hands before her heaving chest, she drew a shuddering breath and continued. “Ah don’t want nobody else but you, and if’n that means having a kid with ya to prove it, that’s what Ah’ll do.”

Expressing her feelings for her brother was one of the hardest things she’d ever done, but she wanted - no, needed to hammer the point home. Pressing herself against him, with one hand on his hip and the other on the bulge at his groin, she craned her head up and smiled. Even if he turned her down, she could take some small solace that she’d tried her best.

Gazing down at his dearest sister, watching a tear slip from her glimmering eyes, Mac felt his heart skip a beat. He’d looked after her for her entire life, doing everything he could to protect her and make sure she was happy, and her profound admission rocked him to the very core of his being. There were dozens of things he could have said to comfort her, yet, like so many times in his life, he chose to let his actions speak for himself.

Stooping low and reaching around her legs, he lifted her from the ground, clutched her to his chest, and turned towards the exit. Be darned if he could say how he hadn’t realized how she felt about him, but that wasn’t what occupied his thoughts - no, he was shocked because he only then came to terms with his true feelings for her. If consummating his love for her and having a child was wrong - Celestia help him, he didn’t care.

Marching through his home, down the stairs, and out of the barn, he trotted to the family homestead. They’d have the main house all to themselves, since everyone was away, and he knew exactly what he was going to do with her. Occasionally peeking down at her, seeing her grinning from ear to ear, he fought the temptation to kiss her - not because he didn’t want to, but because he had something special up his sleeve.

As he made his way into her room, breathing in the subtle aroma permeating her chamber, he lifted her head, leaned forward, and locked lips with quite possibly the most special mare he’d ever known. Though he wasn’t fully aware of it, simply thrilled that she wanted him above anyone else, a part of him was elated that he would never lose her to another stallion. Breathing hotly over her face, while he slipped one hand to her delectably cushiony rear, he pressed his tongue into her muzzle and grunted.

Bloom’s hands shot around his thickly muscled neck, as she returned every ounce of his passion. She’d unintentionally teared up minutes before, when she’d confessed to him, yet she found herself weeping tears of joy in his embrace. Never in her life had she been so happy, and she would do everything she could to reciprocate her brother’s love for the rest of her life.

The deep, passionate kiss seemed to last a small eternity, but even then it felt as though it ended too quickly. Feeling herself being lowered, she tried desperately to hold herself to him, to never leave him, yet it was all for naught. He drew his head back, ending the intimate moment, while he stepped forward, bent over, and gently rested her on her bed.

As she lay there upon her sheets, peering up at his towering, beauteous form, her pulse started to race. His adonic good looks and powerful build were only countered by his kind heart and pragmatism, making him attractive in every conceivable way. From the very depths of her soul, she knew they were meant to be together, and she knew just how to give herself to him.

Though it pained her to look away from him, Bloom closed her eyes and pulled the shirt she’d borrowed up and over her head. There was only one thing she could do to mark the occasion, and that was to cement herself as his lover and the mother as his yet to be heir. Flinging the article to the side, then as naked as when she’d been born, she spread and lifted her legs while grinning up at him.

“Ah’m ready, Mac,” she cooed, feeling hot nectar trickle from her aching marehood to the cleft of her ass, “make me a Mama.”

Mac’s heart thundered in his chest, his stallionhood struggled against his pants, and his adoration for her soared to unimaginable heights, as he fiddled with the buttons of his shirt. He could deal with the repercussions of making love to his baby sister later - for the time being, his only concern was claiming her as his own. Growing increasingly frustrated with his garments, he scrunched his nose, grabbed his collar, and tore the flannel garment from his torso.

Ripping his jeans off, heedless of the mess he was making, he undressed himself in spectacular fashion. As he stepped to the very edge of the bed, drinking in her painfully erotic form, he licked his lips. She’d always been an attractive young mare, yet whatever she’d done to herself had dialed up her sensual appeal to an unimaginable level. Ignoring his throbbing cock, bending over to join her on the bed, an idea struck him.

The disparity of their sizes wasn’t a massive hindrance, although there was a position which would be as or possibly even more appropriate for them than simple missionary. Snaking one arm around the small of her back, while her legs closed around his hips, he lifted her from the mattress and straightened to his full height. Their eyes met, the tip of his cock bumped against her entrance, and a spark passed between them, before they kissed a second time.

Being a mere fraction of his size and mass, despite the additional heft she’d gained in curves, he was able to hold her as if she weighed nothing at all. Hearing her effeminately groan into his maw, feeling the warmth of her arousal creeping down his pulsing length, he steadily lowered her and sank into her depths. She was just as wonderfully snug and inviting as he remembered, yet he restrained his bestial urges and allowed them both to savor the moment.

While he did love Babs dearly, Bloom simply held something that their cousin lacked. Unlike the tall, strong, and bull-headed mare from Manehattan, his sister was leagues more genteel, servile, and all-around good natured - sure, he enjoyed his moments of intimacy with the his mate immensely, yet the sweet, tender lovemaking that his sibling offered was something he secretly pined for. Firmly grasping her backside, easing her down his monolithic shaft, he only stopped after he’d hilted the entirety of stallionhood within her.

“It’s so good,” she whimpered, momentarily breaking their kiss and shuddering in his grasp.

While her flattery poured additional fuel on his lustful fire, the sensation of something wet against his torso shook him from his thoughts. Easing her back slightly, yet keeping his shaft firmly entombed within her velvety confines, he gazed down at her mountainous bosoms. Milk streamed from each colossal teat, trailing down her chest and to her stuffed snatch, and the sight was excruciatingly provocative.

“Go ahead,” Bloom purred, lifting one enormous breast towards his face, “Ah’m sure our foal could use a little help draining these puppies.”

Flashing her a grin, he shot forward, wrapped his lips around her nipple, and vehemently suckled upon the sensitive bud of flesh. She gasped, beset by the wondrous feeling of being nursed on, and reflexively clenched her depths around his length. Having him suckle her milk felt astounding, far and away more pleasurable than simply having her tits played with, and she could quickly see herself getting addicted to it.

“M…Mac,” she whined, running her fingers through his mane, “Ah need ya…”

Grunting around her teat, he simultaneously rolled his hips back and lifted her slightly, freeing a portion of his shaft from her taut marehood, before he began fucking her in earnest. Her toes curled, she could feel her entrance being drawn out and crammed in with every thrust, and she was unable to stop the whimpers of delight from escaping past her lips. Though they’d only just started, she could already tell that she wasn’t going to be able to last long.

The physical sensations of him sucking her breast and pounding her cunt were amazing, there was no denying that, but the fact that she knew he was taking it easy on her was what really got her excited. He wasn’t fucking her like some unknown harlot in a back alley, simply an outlet for his sexual desires - he was making love to her, relshing her, and it was easily the most pleasurable experience of her relatively short life.

Her fingers sank into his back, she rhythmically constricted and relaxed around his pistoning stallionhood, and her eyelids fluttered, as a sensation of warmth grew into an inferno within her abdomen. She’d had more climaxes than she cared to admit, both with herself and her prior flings, but this felt different; not only was the sensation welling up within her vastly more powerful than anything she’d felt before, but it seemed focused in an area just below her navel.

While she rode her stud, doing what she could to pleasure him, a miraculous thing happened inside of her, yet she had no way of knowing it at the time. Zecora’s potion was the ultimate tool of those wishing for maternity, priming her reproductive organs and sending them into a frenzy. Growing ever closer to release, she was woefully ignorant to the two eggs which lazily drifted from her ovaries and into her womb.

Huffing around her nipple, swallowing down mouthful after mouthful of her milk, Mac subconsciously increased his pace. In his time with Babs, both before and after she’d given birth to Little Mac, he’d developed an unbridled fetish for lactation. Heck if he could explain why he was so turned by a big, soft pair of milkers, but he viewed them as a mark of fertility and they really, really got his motor running.

Crushing her womb with every herculean thrust of his hips, working up a sweat in the process, he shifted his head and suckled from her undrained tit. She felt fantastic, far more snug than Babs while being just as durable, and he railed against his domineering urges to go fuck her brains out. As he fought to reel in his inclination to subjugate her, her orgasmic wail and gushing snatch sundered his higher functions.

To think that he’d made her cum with so little effort was as rewarding as it was arousing, and he lost himself because of it. Stepping forward and pressing her to the wall, he plowed her with all the inexorable force of a freight train. If - no, when he knocked her up, she’d never leave the farm or his side ever again. Detaching from her breast, with milk dripping from his chin, he lifted his head and drove his tongue into her howling maw.

Lifting her arms and locking her hands around the back of his head, returning every ounce of his passion, Bloom weathered the calamitous storm that was her climax. She could feel his desire to breed her, to claim her, and the thought of devoting herself to him drove her wild. Flexing her legs and bucking herself against him, she returned his vehement lust with lasciviousness of her own.

On and on they went, rutting like a pair of crazed animals, yet they didn’t stay exclusively in one spot. They screwed on the bed, the floor, over the dresser, and anywhere in the room which they thought was capable of enduring their combined weight - unfortunately for the two of them, neither of the siblings were doing much thinking. The path of destruction carved by their wanton screwing was marked by shattered furniture, crumbling drywall, and ruination like the homestead hadn’t seen since Pear and Bright had first done the deed.

In spite of having climaxed no fewer than a dozen times, leaving her mind in a haze, the sensation of his stallionhood flaring within her, while his length pulsed in tune with his heart, ripped her from her blissful stupor. Laying atop what remained of the bed, with the frame having collapsed beneath them at some point, she locked her legs around him and buried her face in his shoulder. At long last, she was finally going to get what she so desperately wished for.

“Breed me!” she brayed, grinding against him. “Give me your - Aaaaaaaahnn!!!”

Her plea became a rapturous shriek, as he plunged into her womb and erupted like a geyser. The ecstasy of being impregnated was unlike anything she’d ever experienced and she could tell it was an apocryphal moment for herself. In that moment, she became his mare for the rest of her life.

Billions of sperm rushed into her fertile depths, each seeing out a target, while Mac fitfully humped into her and ground to a halt. He’d railed his baby sister a second time, and something told him it was going to be far from the last. Draping himself atop her, heaving air into his lungs, he sluggishly looked around.

The room was an absolute mess, the floor and some areas of the walls were speared with Bloom’s climactic juices, and he’d more than likely have to repair or outright replace all the furniture, yet he had no regrets. As far as he was concerned, the devastation was a small price to pay for what he’d gained. Rolling to the side, taking care to carry her along with himself, he lovingly held her to his bosom and savored the warm afterglow of their heated afternoon.

Pressed against her, he was unable to see the full extent of what his infatuation had wrought. A small, apple shaped sigil, being almost a mirrored image of his cutie mark, appeared on her cum-swollen belly. Being unaware of the seal’s emergence, the pair simply enjoyed the afterglow amidst the destruction.

“Mac,” Bloom whispered, shifting slightly to peek up at him, “do ya really love me?”

Mac smiled and affectionately stroked her back, as he rested his head over her shoulder. “Eeeeyup…”

“Ah ment it too,” she giggled, pecking her nose and rolling atop him.

Pushing herself up, if only to fully appreciate the sheer volume of Mac’s jizz in her belly, she leaned forward, gazed down at her stomach, and went rigid. It was only at that moment that she spied the mark on her abdomen. Cocking her head to the side, she slowly looked up at her brother’s face.

“Mac, does that mean what Ah think it means?” she quietly asked, with her excitement steadily growing.

While he wasn’t entirely sure what the sigil meant, he leaned heavily on his instincts, beamed up at her, and snatched her into another hug. “Eeeeyup!”

The mess they’d made was catastrophic, they were both slathered in sweat, and a dull ache crept into their frames, yet it had all been worth it. Their bond had grown to something unbelievable, strengthening and transforming from mere brother and sister to paramours, and their lives were made all the more whole because of it. Locked in an intimate embrace, basking in the comfort they afforded one another, they put aside their fears and doubts while sharing each other’s warmth, comfort, and security…

Chapter 3

View Online

As the sun crept through the window and onto her face, Bloom peeked up at the carmine behemoth’s face. Having thoroughly demolished her bed the evening prior, they’d ultimately retired in Mac’s apartment. Squirming in place, pressing her cheek against his chest, she contentedly sighed and listened to the steady beat of his heart.

She’d always taken comfort from her big brother, viewing him as a pillar of the family, yet her love for him had transcended to something all the more profound. They’d crossed a line from which there was no going back, becoming something more than siblings, and she couldn’t be happier. As she breathed in his ambrosial scent, her mind wandered to what his plans were for the day.

Someone would have to remove the shattered remnants of her bed frame and clean up her chamber, since there was more than likely dried jizz in a number of places, although she wouldn’t be able to lend a hand - at least, not until she was done with her classes for the day. She only had a few months left before graduation, so she really couldn’t afford to play hooky - that and Mac would likely insist she went to school. Wondering if she could concoct some sort of e, scrunching her snout in indignation, a solution for her problem presented itself.

Peeking down his torso, past his sculpted pecs and six-pack abs, she spied the bed sheet tented over his groin. It had been the first time she’d ever actually slept with him, excluding when she was a tiny little filly, so the sight of his morning wood brought butterflies to her stomach and an ache to her loins. Though she’d wanted to share a bed with him after they’d first fooled around, he’d been adamant that she go back to her room for the night - likely out of guilt or unaware of how deeply she wished to be with him. Glancing up at his face, ensuring he was still unconscious, an impish smirk crept across her muzzle.

If she could butter him up enough, starting his day on the right foot, he might feel generous enough to let her stick around the farm to help with chores, but that was a big, big if. Babs wasn’t the type of mare to prioritize Mac’s stallionly needs, so far as she knew, which may give her just the opening she needed. Grinning from ear to ear, she awkwardly rolled off the mattress, got to her feet, and tiptoed to the foot of the bed.

Seconds after she took her first step, a moist sensation against her bosoms caused her to falter. As she glared down at her mountainous breasts, spying twin trails of milk dribbling from her teats, she suppressed a groan. She positively adored her massive breasts, despite having had them for less than a day - nonetheless, it would take some time to adjust to their size, heft, and the fact that she was suddenly as or more productive than the average dairy cow. Shaking her head and clearing her thoughts, she ignored her udders and continued with her spontaneous and salacious plan.

Luckily for her, Mac was dozing on his back with his legs slightly spread, giving her just the opening she needed. Lifting and cautiously crawling under the linens, doing her best not to brush up against him, she ponderously moved closer and closer to his groin. The bouquet of his stallionhood was even stronger beneath the sheets, setting her pulse to race and mind to grow fogged with lust. Be darned if she could explain how her cousin could live with him, because she’d be more than happy to spend every waking hour serving and worshiping him like a god.

Moving at a hastened pace, driven by her subconscious wants, it took her no time at all to reach her prize. Resting just before her was his pillar-like stallionhood, as tall and imposing as some primal monolith, but there was a problem; even propped up on two arms, she wasn’t quite big enough to suck him off angling his length towards herself. Undeterred, realizing he was going to wake up soon enough, she gingerly wrapped her fingers around the base of his shaft, hauled his cock towards her face, and wrapped her lips around the tip of his member.

Though they’d washed up before hitting the hay, she swore she could still taste traces of his potent spunk and her nectar on his supple skin. Her eyes drifted shut, her head wandered lower, and she began to drool from both ends, as the head of his dick glided to the back of her throat. She wasn’t sure if she’d be able to fully hilt him in her snout, but that didn’t mean she couldn’t give it her best shot. While she bobbed her head and fixated on the wondrous flavor of his bare flesh, getting increasingly worked up by the act, she failed to notice him shift ever so slightly.

Mac stifled a yawn, awakened by the blissful sensation of something warm and wet around his morning wood. He couldn’t remember the last time his mate had been kind enough to give him a good morning blowjob, and the considerate gesture brought a gratified smile to his face. Babs really wasn’t a bad pony - a bit hard-headed and strong willed, sure, but far from bad! Lowering one arm and lifting the cover, fully expecting to see the fuchsia mane and tanned coat of his lover, he was met by a pair of amber eyes.

The sight nearly made his heart stop, he struggled to comprehend what he was seeing. He’d never functioned well right after waking up, typically giving himself a full hour, a shower, and a few cups of coffee before he could start his day in earnest, so it took a moment for the memories to come flooding back. Flashes of himself and Bloom assailed him, of the debauchery they’d enacted over the last few days, and he was a bit shocked to find her nonchalantly sucking him off.

He couldn’t be upset that she’d become so amorous with him, seeing as how he’d ultimately plowed her senseless and apparently ignited some maternal desire within her, yet she should’ve known better than to nonchalantly get frisky; she knew he was in a relationship with Babs, with their cousin no-less, and that he had one child and another on the way. Even if he was totally fine with knocking her up, which he may have already done, having a foal with his sister and their cousin might set a new incestuous record for the Apple family - besides, she hasn’t even gotten her diploma yet!

Turning his head and glancing to the side, seeing that she had less than an hour before school was supposed to start, he knit his brow. As nice as it would be to get some bed head, he was not about to let her cut classes - not for a second day in a row. Forcing himself to glower down at her, he reached out, patted her cheek, and sternly shook his head.

Bloom reluctantly withdrew, eager to continue but knowing she shouldn’t test him, and cleared her snout of his turgid length. The last thing she wanted was to make him upset, especially since she had every intention of bearing him an heir - that being said, she wasn’t completely out of options. Rearing back, as she straddled one of his muscular thighs, she rose to a kneeling position and shot him the best puppy dog look she could muster.

“Awwwww -” she whined, “won’t ya let me finish ya off at least? Ah know you got a full day ahead, but -”

He petulantly crossed his arms over his broad chest and looked at the clock, cutting her off with his silent response. Her fears had been realized, he seemed adamant that she not dither another day away with him or more lecherous hijinks. Even if she feigned going off to the schoolhouse, there was a very real chance that he’d go to check on her or possibly wait for her after classes. Thinking fast, still unwilling to throw in the towel, the cool, wet feeling on her bosoms gave her an idea.

“Ah can’t go to school like this,” she pleaded, squeezing and spraying milk from her erect nipples. “Mrs. Cheerilee will -”

Swinging one leg up and over her, Mac placed his feet to the floor, rose from the bed, and stomped over to the dresser. Having already dealt with Babs throughout her pregnancy, he’d learned just enough about expectant mothers to address Bloom’s dairy-based dilemma. Opening a drawer and rifling about, it only took him a few seconds to find what he was looking for.

As he tossed her a pair of bra pads and the biggest brassiere he could find, he smugly grinned over at her. If she thought she could taunt him into another hedonistic bout of fucking, she was dead wrong. The first and second times they’d banged were spontaneous, both with elements that had taken him completely off guard, but not this time - this time he was ready. Seeing her lip quiver, he turned away and stepped over to the closet to get dressed.

It was all Bloom could do to watch the giant in awe, seeing him dismiss her advances as though they meant less than nothing. He’d handily defeated her attempt to seduce him, leaving her feeling both defeated and crestfallen. As she crawled off the mattress and got to her feet, she snatched up the bra and pair of pads he’d flung at her.

“Just so you - Ugh - know, Ah would’a done all the work,” she grunted, wriggling into the undergarment. “Yup, would’a ridden you cowgirl and everything.”

Only barely getting the brasserie in place, she peeked over to see if her provocation had had any effect on him. Sadly, though he was still rock hard, his stoic demeanor was in full force. As much as she loved him, seeing his reaction, or lack thereof, was beyond annoying. Churlishly stomping her foot, she threw her hands up in defeat.

“And what am Ah supposed to wear? It ain’t like Ah -” she fell silent, as he tossed her one of his t-shirts and a modest skirt of Bab’s. Staring down at the garments in disbelief, her shoulders went slack. “Thanks…”

Securing his overalls, having chosen to go without a shirt that day, he nodded. “Eeeeyup.”

“You gonna try fixin’ up mah room today? If’n you wait, Ah’ll help once Ah get back,” she asserted, steadily getting dressed.

Moving to the doorway, Mac paused and looked over his shoulder at her. “Eeeyup.”

Without waiting for a reply, praying she’d taken the hint, he saw himself out and to the stairwell. Though he hadn’t shown it, other than his boner, he’d actually considered letting her stay around the farm. She’d almost assuredly get asked about her enhanced physique, and she’d have to answer for why she’d been absent yesterday, but those were her problems to solve, not his. She was smart enough to come up with something, hopefully without mentioning her budding interests in him, which meant he could let her sort things out.

It wasn’t like he wanted to boot her out and make her go to school, but he needed to for both their sakes. He had plenty to do around the farm, not to mention addressing the demolition in her bedroom, and she was very close to graduating. Truth be told, he’d be more worried about Granny Smith killing him because he’d had some part in her flunking over them knocking boots a handful of times. Shaking his head, attempting to get his thoughts in order, he plucked a tool belt hanging from a support beam and plodded off to the homestead.

Cleaning up the damage from their disastrously depraved afternoon would more than likely take most of the day, but that was only the start of the problem. If memory served, her bed had been destroyed beyond any hope of repair, with the frame shattered and mattress all but rent asunder, so he’d probably have to build a new one himself; he would have gone out and simply purchased a new one, but Granny or AJ would probably notice the hit to their family bank account.

As he steadily moved through the farmhouse, trotting up the stairs and down the hallway, he paused at Bloom’s chamber. Things were much worse than he’d remembered; there were cracks in the drywall, the bed was a broken heap of timber, and a pair of her panties hung from the ceiling fan. Pinching the bridge of his snout, swearing that it was the last time he indulged his lewd little sister, he pulled a claw hammer from his belt and put himself to work.

Grumbling to herself, still inordinately displeased that her brother had shrugged off her advances, Bloom stomped down the stairs from the apartment. She could have sworn that he’d succumb to her feminine wiles! Between her expansive bust, enlarged hips, and the fact that he’d woken up with his dick in her mouth, he should have bent her over and done her raw! Stepping to the ground floor and marching to the exit, subconsciously adjusting and readjusting the undersized bra, something caught her eye.

Resting in one corner of the barn was the milking machine they used for the cows. She was well aware of what the device was used for, having used it multiple times as a chore, and the sight of it summoned a particular thought. Since she was leaking milk like a busted faucet, and given that her tits were so full that they were uncomfortable, it would be reasonable for her to drain herself before sitting in class all day ~ right?

Scampering over to the contraption, which was conveniently resting within its box, she snatched up the crate and an empty milk pail, whipped around, and dashed back to the stairs. So long as she didn’t take an hour to relieve the strain on her tits, she should be able to get to school before the tardy bell rang. As she ran back to Mac’s room, the only reasonably private area she could think of, she tried to ignore the rapidly moistening panties clinging to her crotch.

Mac had no way of knowing how long he’d been toiling away, but it had been at least an hour or two. He’d managed to clean up all the debris, hauling all the scrap timber to the burn barrel out back, and started patching the walls - unfortunately, he still had a long way to go. With the drywall repaired, having to leave the putty to set for a day, he could go and check the barn for lumber. If he was lucky, they’d have enough spare timber laying around to cobble together a decent bed frame.

Wiping his brow, he lazily turned and lumbered out and into the hallway. Even if they didn’t have the supplies needed to construct a frame, he could still get a snack for himself - for buck’s sake, what with Bloom’s little distraction, he hadn’t even had the chance to eat breakfast or have a morning coffee. Plodding to and through the house, making for the front door, he wondered how his little sister was handling his refusal.

Things may have been different if it was the weekend, but there was nothing he could do to change it. She only had a few weeks left to go in her senior year, with finals coming up just next month, so she couldn’t afford to miss out on her studies. As he crossed the threshold into the barn, musing on what she may do once he got home, he glanced up and to his apartment door. Buck it, the construction job could wait a little while longer - for the time being, he could really go for something to eat.

It wasn’t until he’d scaled the stairs and trolled into his living room that he noticed something was amiss. Bloom’s book-bag still rested on the couch, meaning one of two things - either she’d forgotten her supplies before she’d left, or she’d disobeyed his wishes and decided to skip her classes; his mood instantly darkened at the thought, as he quickly checked the kitchen then turned and stormed to his chamber. If he was about to walk in on her a third time, so help him, he would sling her over his shoulder and carry her to the school himself.

Bursting through the room to his door, already holding a finger up to chastise his sister, he stopped in his tracks. It wasn’t the fact that he’d found Bloom that immediately derailed his thoughts, it was the state she was in. Buck naked and bent over, resting her head against the top of his dresser, she feverishly got herself off while a milking machine, the very contraption he’d used on Babs multiple times, drained her enormous udders.

Watching the thick, nutritious cream being drained from her tits would have been arousing enough, but fate had thrown him a special curve-ball. Not only had she decided to forego her studies to empty her jugs, but she was furiously masturbating to the process. Lightly panting, finger-fucking herself like it was the last day of her life, she was blissfully ignorant to his intrusion. Clenching his fists, simultaneously turned on and angry with her, he trudged over to her and unfastened his suspenders.

“Oh buck,” Bloom groaned, plunging a third digit into her cunt.

She’d had no way of knowing that the machine would feel so gosh-darn good, so she couldn’t help but rub one out after she’d started. It hadn’t taken long for her to throw in the towel and strip down, overwhelmed by the compulsion to get off before leaving the farm. She hadn’t planned on masturbating through the process - then again, it seemed to be taking forever for her tits to be emptied.

Lost to her thoughts, nudging a fourth finger to her entrance, something reached around her waist, grabbed her wrist, and pulled her arm behind her back. The sensation of thick, calloused fingers against her left her momentarily stunned, allowing the assailant to wrench her other arm from beneath her head. Looking back in a panic, seeing the towering behemoth looming behind her, her pupils shrank to pinpricks.

“Ah…Ah can explain!” she bleated, as Mac effortlessly held her wrists in one hand. “Those pads ya gave me were super itchy, so Ah figured, well, Ah may as well…”

Her desperate explanation died in her throat, as she watched him tug and wriggle his way out of his overalls. The sight of his bare torso, glimmering in sweat, was enough to make her marehood involuntarily wink, yet that was just the appetizer. In no time flat, seemingly in the blink of an eye, he’d completely disrobed, kicked his garments away, and raised one hand above her flank.

“M…Mac!” she stammered, swallowing hard. “Ah ain’t no filly, ya can’t just -”

Smack

His palm impacted squarely on her ass, bringing with it a jolt of pain and, much to her surprise, a thrilled bolt of pleasure. Biting her lip, only barely able to stifle herself, she struggled to recover before the second blow landed - sadly for her, he was faster than her. Effectively immobilized by her big brother, being spanked like she was a foal, an odd mix of emotions roared forth.

While she’d been too young to remember her father, a part of her viewed Mac as a paternal figure. He’d always been there for her, praising her for her successes, supporting her through the hard times, and pushing her to strive, so he was the closest thing to a dad that she had. Being punished by him, after beginning to view him as a lover, evoked a maelstrom of emotions - ultimately resulting in a twisted amalgam of her already perverse perception of him. Arching her back and splaying her legs, her teary eyes shot to his face.

“Ah’m sorry, Daddy,” she mewled, “Ah’ve been a bad filly.”

Having reared back to clap her backside for a third time, Mac froze. Something about the way she’d just called him Daddy struck him as off, but it only took him a moment to figure out why. Shifting his focus from her face to her behind, seeing syrupy nectar leaking from her engorged sex, realization dawned on her. She wasn’t viewing it as a punishment - no, she actually liked the harsh treatment.

In a rare moment of indecision, he faltered. On one hand, he would have been justified in punishing her for her disobedience - on the other, hearing her call him Daddy, while perversely enjoying the discipline was one of the most enticing things he’d ever seen. Glancing down to his stallionhood for guidance, seeing his dick twitch in anticipation, he settled on having his cake and eating it too.

Momentarily pausing his retribution, he clutched the base of his cock and guided it to her slavering entrance. Considering they’d been fucking like jackrabbits in spring for the last two days, he saw no harm in punishing her while blowing off a bit of steam. With the tip of his length kissing her lower lips, continuing to hold her wrists in one meaty hand, he stepped forward, cocked his hips back, and plunged into her awaiting depths.

Bloom shivered from head to toe, as her cunt was filled in a heartbeat. A shuddering breath escaped her, she attempted to rock back against him, and a bead of saliva crept down her cheek, relishing the sense of fullness he provided. The enormity of his endowment was both a blessing and a curse, being wildly intense while ultimately ruining her for any other stallion, but she couldn’t care less; as far as she was concerned, he was the only stud she’d ever give herself to.

Smack

The tinge of pain tore her from her thoughts and brought her back to the present, allowing her to peek up and back at him. “Daddy, please, Ah - Aaaaaahn!”

Mac struggled to keep a grin from breaking his impassive features, as he spanked her a third and fourth time. Caressing her soft, pillowy rear, seeing her flesh redden slightly, his pulse skyrocketed. He couldn’t fathom why disciplining her was as stimulating as it was, but he was so hard that it hurt. Hauling a portion of his shaft from her confines, watching her pink, meaty lips clinging to his length, he began plowing her.

If he’d been in a more twisted situation before, he couldn’t recall it. There he was, rutting his youngest sibling - a sibling he’d probably knocked up, while spanking her and being called her Daddy. If there was a higher power, aside from the Princesses, he prayed they’d forgive him for his hedonistic transgressions, because he’d definitely sinned. Increasing his pace, issuing seemingly random slaps to her backside, his eyes flitted between her jiggling ass, his stallionhood pistoning into her, and her bliss-wracked face.

Every time his open palm impacted against her, sending ripples through her soft buns, she’d moan and fiercely clamp down around him. Her reaction shouldn’t have been that surprising, yet he was impressed that her snug cunt could get even tighter than it usually was. Snorting through his nose, hauling her torso slightly higher, he leaned to the side and peered at her rack.

Though one breast was still affixed to the machine, the other swung freely and sprayed milk over the dresser and carpeted floor. He’d thought Babs had been a productive mare, able to generate nearly a liter of dairy a day, but Bloom obliterated her cousin’s output. More akin to a cow, having already filled the pail beneath her, there seemed to be no end to the rich cream streaming from her teats.

Securing his grip on her, mesmerized by her swaying rack, he gradually pounded into her with increasing force. She was supposed to be getting a punishment, yet her actions smacked of a masochistic bitch who was loving every second of his ministrations. Frustrated and aroused, feeling his domineering side creeping to the fore, his higher functions waned.

He knew he shouldn’t be enjoying himself, although it was a losing battle. Between the heavenly embrace of her snatch, the view of her perfectly curvaceous body, and hearing cries of pain-streaked rapture, his passion roared into an unstoppable inferno. Hauling her arms to his chest, pulling her torso up and towards himself, the force of his hips slamming against her nearly set her off balance.

Bloom’s eyes widened in shock, as the ruinous force of his love all but destroyed her mind. The sensation of being railed by him, bearing the full fury of his rut-lust, was indescribable. He controlled her body, he practically obsessed her thoughts, and she felt like her very soul belonged to him. For all intents and purposes, she was his, whether he knew it or not.

Unable to reciprocate, barely able to keep her balance, she did the only thing she could - she constricted her snatch with all the strength she could muster. She’d always been relatively strong, bearing the physical power of the hardy Apple family, so her vice-like cunt squeezed his cock in its formidable grip. Even on his plunges, feeling her entrance stuffed in by his plunges, she threw her head back and moaned.

Moments before peering over at him, a singular sensation in her abdomen caught her attention. Gazing down her chest, past her wildly swinging bosoms, she spied her belly rhythmically bulging. The sight of his stallionhood disappearing and reappearing within her belly was awe inspiring to a fault, nearly driving her mad with desire - still, that wasn’t nearly as wondrous as her inevitable fate.

Her womb had yielded to his unstoppable might, over the course of less than a week, and yet this was only the beginning; sooner or later, she would be carrying their foal. Though she hoped Zecora’s potion had done the trick, boosting her fertility and ensuring a pregnancy, she’d get impregnated by him whether he liked it or not. She wasn’t normally one to do anything underhanded, but she’d break into his room and ride his dick if she had to.

The thought of herself growing gravid, carrying their lovechild, was enough to push her to the brink. As his free hand wandered up her waist and to her chest, ferociously squeezing her unmolested teat, she howled. She was so close, so very close to cumming that she felt like she may go mad, but that changed in an instant.

As he leaned forward and rested his head on her shoulder, leaving her to presume she’d get a kiss, he undid her completely. Instead of any tender act of affection, he angled his muzzle and bit down on her collar. The spike of pain was devastating, sending her sailing into a tumultuous sea of raw ecstasy.

Mac clenched his teeth on her delicate flesh, blinded by his primal longings. Gone was the loving, kindhearted stallion he was, replaced by a ferocious god of virility and conquest. His thrusts reached a fevered pitch, his nostrils flared, and the head of his dick battered against the back of her foal-factory, all while her cervix and marehood milked him with the unbridled enthusiasm of a god-tier broodmare pining to be bred.

Her climactic scream and the marish juices gushing from her spasming cunt were the final nail in his coffin, pushing him over the edge. Fully hilting himself, burying every inch of his throbbing length within her, the tip of his stallionhood rapidly expanded to its full size. As his virile essence rushed into her depths, bathing her interior, he grunted with every fitful thrust of his powerful hips.

Though she was still very much his cherished sister, the past few days had elevated her status to something more than that. He still loved her with all his heart, but it wasn’t until that moment, overwhelmed by a primordial need to sow his seed, that he fully comprehended what she’d become - his mate. Relaxing his jaw and pulling away, he released her arms, clutched her head, and drove his tongue into her maw.

Acting as a depository for his essence, while he heatedly made out with her, did Bloom in. She’d somehow managed to endure their prior sessions in the bedroom, barely staying conscious, but this time felt different; the vehemence with which he used her, coupled with the final kiss, was too much to bear. Slipping into the welcoming embrace of euphoric oblivion, while her gut bloated with the sheer volume of his cum, she blacked out.

Mac would have continued frenching her, had she not collapsed beneath him. Unceremoniously unsheathing herself from his still pulsing shaft, she crumbled to the floor at his feet; the jarring development ripped him from his stupor and left him speechless. Staring down at her, seeing the final shots of his load coat her back, face, and mane, he stooped down, gathered her up, and turned to the restroom.

Any traces of exasperation were gone, replaced by a sublime feeling of contentment. He’d never been able to stay mad at her, yet this was a particular case. If he’d known that she would be as committed to him as she was, they would have probably been fooling around much, much sooner - after she’d become of age, of course. Holding her to his chest, stepping into the bathroom, he smiled and shook his head.

He’d just made even more work for himself, making one heck of a mess while still needing to repair the damage in her room, but those were relatively trivial concerns - for the time being, he needed to clean her up and get her into bed for a well deserved nap. As he stepped into the shower, having set the water to wash over them, he made a mental note to visit Ms. Cheerilee and explain Bloom’s absence.

Though he couldn’t quite wrap his head around why being called Daddy had flipped some switch within him, he couldn’t deny how arousing the moniker was. Grabbing the shampoo with one hand, hoping he wasn’t developing a new kink, his eyes wandered to her cum-bloated belly. At the rate they’d been going, having unprotected sex on a daily basis, he wouldn’t be shocked if he’d unintentionally put a bun in her oven. Caressing her stomach, unaware of just how effective Zecora’s potion had been, he had no way of knowing just how right he was…

Chapter 4

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Stretching her arms and smacking her lips, awakening from her restful, post-coitus nap, Bloom rolled to her side - well she attempted to roll to her side. As she turned atop the mattress, fully intent to drape one arm over the broad chest of her brother-made-lover, something pressed against her belly. As she wearily peered down at herself, her eyes went wide.

Her once flat, somewhat toned abdomen was gone, ballooned to obscene proportions. Shaking her head in disbelief, telling herself that she had to be dreaming, she lifted her hands and caressed her expansive stomach. Her warm flesh and soft coat graced her palms, feeling very much as they always had - that was until something within her shifted.

Flinging off the covers, disregarding the slumbering giant beside herself, she stared in disbelief at her gravid form. Her massive, udder-like tits rested on her taut, rounded belly, weakly dribbling milk over herself and onto the bed sheets, as her mind grappled with what she was seeing. She accepted the all too real possibility that she may have been pregnant, but there was no way in Equestria she’d woken up from a nap looking the way she did ~ was there?

“Uh -” she grunted, blindly shoving her sibling, “B…Big Mac?” As the sensation of something within her shifting returned, she redoubled her efforts. “Gosh darn it - Mac, wake up!”

Mac’s eyelids fluttered open, yet he rolled away from his needy, exceedingly lecherous little sister. Having washed her and tucked her into his bed, after his somewhat sadistic punishment for skipping classes again, he’d managed to finish the repair work to her room. As far as he was concerned, regardless of how amorous his sibling had become, he’d earned a few hour’s rest - unfortunately for him, she was either unconcerned or uncaring about how tired he was.

“Mac!” she blared, grabbing and pulling at his mane, “we got a big, BIG problem!”

Scowling as his head was pulled towards her, he opened his mouth to scold her, noticed the concerned look on her face, then followed her gaze down her body. As his eyes settled on her stomach, his jaw went slack. He’d pumped her full of foal-batter earlier that day, leaving her with a slightly cum-bloated gut, but this was something altogether different. If he hadn’t known better, having lived with Babs throughout the entirety of her pregnancy, he could have sworn his baby sister had skipped several months of gestation in mere hours.

Shaking his head, doing what he could to dislodge such an inconceivable thought, he reached down and rested a hand on her stomach. The moment his fingers touched her skin, he felt a kick. As quickly as he’d touched her, he withdrew his hand, bolted upright, threw himself forward, and pressed his ear to her abdomen. Sure enough, as he pressed his ear to her belly, he felt yet more movement inside her.

“We ain’t dreamin’, are we?” she blurted, bringing his attention to her face.

He’d seen and experienced things beyond imagination, from fighting the nightmarish thought-form of an alicorn Princess to seeing a relationship blossom between a literal god of chaos and the most demure mare he’d ever met - even still, the bizarre situation he found himself ranked among the strangest. As he held up a finger, balancing himself on one arm, he furrowed his brow, gently placed his face to her stomach, and listened.

As unimaginable as it was, he heard a heartbeat - no, two heartbeats. Slowly straightening up, he crawled off the bed, got to his feet, and strolled into the closet. Be darned if he knew what was going on, but they needed to get some answers fast. Retrieving one of Bab’s maternity sundresses, he stomped back into his room, flung the garment to his sister, and made for his dresser. Visiting the school and Ms. Cheerilee could wait, now that they had a much, much bigger problem to deal with.

Bloom unsteadily got to her aching feet, as she groaned under what felt like an additional fifty pounds of weight. “T…this is a dream, right?”

The stud shook his head, pulling a pair of jeans up his sculpted legs. “Nnnope…”

Following his example, lifting her arms up and into the simple dress she’d tossed him, she wriggled into the article. “You think Zecora might know something about -”

“Eeeeyup…” he grumbled, cutting her off while he stepped into his shoes.

“Ah mean, yeah, that does make a little sense,” she sighed, looking around for some footwear to borrow. “She said something about a bigger problem if you return mah affection or something, but…” she trailed off, seeing his head whip towards her. “What? How was Ah supposed to know what that was supposed to mean? It ain’t like she’d ever been all that easy to understand!”

Breaking eye contact with the clearly frustrated colossus, she looked to the door and noticed a pair of her cousin’s sandals. Considering everything she’d done to Bab’s stud, simply borrowing some footwear was the least of her concerns. Shuffling over and completing her ensemble, utterly bereft of any sort of undergarment, she gave herself a quick once-over in the vanity.

If she hadn’t looked pregnant before, with her heaving rack, foal-bearing hips, soft curves, and generous backside, she definitely looked like a MILF in the making now. It may have been her imagination, but her chest seemed to be slightly larger and even more productive than it had been, with wet patches of fabric over her teats. Indignantly scrunching her snout, determined not to wrestle with a bra or the accursed pads to cover her nipples, she peeked over at Mac.

“Maybe we should take the long way to Zecora’s place,” she softly suggested, causing him to quirk a brow at her. “Ah mean, unless you want to explain this,” she hastily added, caressing her belly, “it might be a good idea to avoid folks seein’ us.”

Raising a finger to argue with her, Mac faltered. Though he hated to admit it, she’d made a darn good point. Seeing as how nearly everybody in Ponyville knew him and his little sister, the sight of her looking almost comedically pregnant would raise a whole heap of questions that he was not ready to deal with. Slowly nodding, acquiescing to her request, he trotted to the door and motioned for her to follow.

Mindlessly making his way through his home and to the stairwell, his thoughts raced. Any chances of slipping under Bab’s, AJ’s, or Granny Smith’s radar was long gone, with Bloom’s condition being painfully obvious. Defeatedly stomping down the stairs and into the barn, resigning himself to get chastised and/or beaten half to death when the rest of his family returned, a stifled whimper caught his ear.

“Ah - consarn it,” Bloom quietly cursed, carefully easing herself down the stairs behind him.

Her awkward gate and her pinched expression brought with them an immeasurable worry, washing away his self-concerns in the blink of an eye. Marching back up to her, bringing her to a halt, he stooped forward, swept her from her feet, and cradled her to his chest. There was no way in Tartarus he was doing to make her walk all the way to the Everfree forest in her current condition, whether she was carrying a pair of his foals or not.

“Mac,” she bleated, twisting in his grasp, “Ah ain’t a baby, Ah can -”

Reaching the foot of the stairs, making for one of their empty apple carts, he leaned in and silenced her with a kiss. Even in her current condition, there was no denying that his youngest sibling was a tried and true member of the Apple family. Like her sister, mother, and grandmother, Bloom could and often was hardheaded to a fault - a trait that was simultaneously endearing and frustrating as heck. Glancing upward, as he kept his lips against hers, he approached the wagon and slowed.

Shifting her attention from his face to the cart, Bloom hung her head. “You ain’t gonna give me a choice, are ya?”

Swinging open the wagon’s back gate, he gingerly loaded her into the wooden bed. “Nope.”

Unsure of what to say, if there was anything appropriate to say at all, she watched him walk around to the front of the vehicle, lift the push bar, and start hauling the contraption out the open barn doors. She’d never really given much thought about getting pregnant, up until Babs had moved in and given birth to Little Mac, so the wildly unforeseen development was a lot to digest - still, it wasn’t like she was unhappy about what had happened. She truly did love Big Mac with all her heart, and he was the perfect stallion in her eyes, but she hadn’t expected to have a child with him.

As they trundled down a dusty road, taking the scenic route around Ponyville and to the Everfree forest, her mind wandered. There was a very real chance that Applejack would be disappointed with her, Babs would probably be angry, and Granny Smith would more than likely fuss her out for a few hours straight, but she wasn’t worried about them. Lifting her head and shifting in place, looking to her brother’s strong shoulders, she slowly exhaled.

Mac was and always had been a pillar of the family, serving as both a financial and emotional pillar for the household. Now with two more mouths to feed on the homestead, with the inclusion of Babs and Little Mac, she wasn’t sure how much more stress he’d be able to endure. Burying her face in her hands, her mood darkened.

“Mac,” she called out, causing him to slow and look back at her, “I’m sorry.”

Having known her for his entire life, Mac instantly recognized the sincerity in her voice. Continuing to move the cart up a hill, he turned his attention back to the road - not because he wasn’t interested in what she had to say, but because he couldn’t afford to take a tumble and risk harming his precious cargo. As he plodded onward, glancing over at the setting sun, he heard something that made his blood run cold - he heard her sniffle.

“Ah…Ah never meant for all this to happen,” lamented, her voice cracking ever so slightly. “Ah really do love ya - shucks, I love ya more than anyone, but Ah never meant to put you through all this trouble…”

Pumping his legs and bringing the cart to the crest of the hill, he hastily scanned his surroundings, made sure they were on a level patch of earth, and lowered the push bar. He’d never been the best with words, but he was lucky enough to know how to handle most situations. Wheeling around and trotting over to his little sister, seeing her misty eyes glued to the horizon, he hooked a finger under her chin and turned her to face him.

Drawing her closer, he leaned over the edge of the wagon and kissed her; not the fiery sort of kiss he was prone to in the throes of passion, but a tender, caring, heartfelt kiss of sympathy and understanding. Saying anything seemed arbitrary, almost trivial, compared to showing her how he felt. Addressing her concerns with his warm lips and heated breath, cradling the back of her head in his hand, he sweetly pressed his tongue into her muzzle.

He genuinely wasn’t too worried about the future for them. The family had, could, and always would find a way to make ends meet, even if it meant calling in some help from their multitude of cousins, aunts, and uncles. The more members their clan had, the stronger they became - the stronger they became, the more powerful their ties grew. His baby sister meant the world to him, and there wasn’t anything he wouldn’t do to ensure her happiness and well-being.

As much as it pained him to admit it, Bloom held a larger part of his heart than Babs. He adored his cousin in every way, but his sister had something she didn’t - time. He’d been there for his youngest sibling since she came into the world, they were inseparable, and he couldn’t bring himself to ever hurt her. If having a foal with her would deepen their bond, elevating their relationship to a higher plain, then he’d put his shoulder into the wind, dig his feet in, and do whatever he had to to make it work.

Seconds stretched into a small eternity, before he withdrew and stared into her eyes. Even if Zecora couldn’t explain what was going on, he’d be sure to take care of her and be the best father that Equestria had to offer. Giving her one final peck on her nose, he softly tousled her hair and trotted back to the head of the cart. The sun was setting, the air was getting cool, and they had a not-so-little mystery to solve.

The remainder of their trip was done in relative silence, with the pair quietly contemplating the odd direction their life had taken and where things would go moving forward. Still determined to finish her schooling and get her degree, despite the possible setback of her graduation, Bloom hoped to get work on the farm or potentially in Ponyville, if only to stay close to her family. Mac figured he’d handle the situation like every other step of his life, one ponderous step at a time; he would continue to cherish his sister and their offspring, regardless of how difficult the burden may inevitably be.

By the time they had reached Zecora’s home, having pressed into the dense woodland outside of town, the cool hues of evening were upon them. Laboriously easing herself out of the cart, with the aid of her big brother, Bloom approached the potion maker’s house. Aside from being the more talkative of the two, she was at least partially responsible for the dilemma they’d found themselves in.

“Zecora?” she called, knocking loudly on the doorway. “Are ya home? Ah - we got an issue here…”

The sound of movement from inside was followed by the door swinging open. “Applebloom, what have…” the zebra fell silent, as her eyes settled on the girl’s mountainous chest and huge belly.

Applebloom smiled sheepishly up at the sage woman, trying and failing to cover the milk-soaked patches over her breasts. “Ah don’t know what was in that potion, but it sure as heck looks like-”

“I see your love is beyond measure, for her to bear such a bountiful treasure,” Zecora smugly intoned, smirking up at the stallion.

“Uh -” Mac uneasily began, a blush creeping into his cheeks, “E…eyup?”

“Please come in and have a seat, and feel no need to be discreet,” she added, stepping aside and waving for the duo to enter.

Doing as asked, the pair of Apples saw themselves in and moved to the living room. As they eased themselves onto the sofa, seated on the opposite ends, their host locked the door and followed along behind them. Even though the alchemist had known what the siblings had been up to, presenting themselves in such an unseemly fashion did little to make either of the Apples terribly comfortable.

“What issue is of which you speak,” she began, smirking between them, “for you’re both acting rather meek.”

“Come on,” Bloom huffed, softly patting her belly, “ya can’t tell me this is normal - Ah mean, for Pete’s sake, Ah look like Ah’m fixin’ ta pop!”

“Apple Bloom, don’t be so silly, you are far from a daft filly,” the zebra snickered, unseating herself. “You have both spent time in someone’s bed, which is how you wound up so thoroughly bred.”

Askance, the girl’s looked up to the woman in confusion. “Ah know where foals come from, and we might have fooled around a few times, but that don’t explain how in the hay I ended up this big!”

As the potion maker glanced in Mac’s direction, he looked away. “Eyup,” he reluctantly admitted.

“If your affection, he does return, you may just have a bigger concern,” Zecora stated, repeating the cautionary words she’d spoken earlier that week. “Your love bore fruit both strong and true, just what did you expect it to do?”

Lifting a finger to protest, Bloom found herself unable to answer. Ever since she’d first bedded Mac, she’d fantasized about what it would be like to raise a family with him, to carry and raise their children, so she couldn’t bring herself to lie and say otherwise. Hanging her head, inadvertently squeezing her tits and causing milk to seep through her dress, she groaned.

Smoothly walking over and patting the young mare’s shoulder, the zebra leaned in and lowered her voice. “If you wish to change your fate, it may yet not be too late…”

The alchemist’s words struck Bloom like a gong. She hadn’t even considered undoing what was happening to her - if anything, she simply wanted an explanation. Though she highly doubted it, there was a slim chance that she wasn’t actually pregnant, that her whole condition was some sort of strange byproduct of the potion - as such, she needed to be sure. Straightening up and placing her hands on her tummy, she peered up at the zebra.

“Ah just have one question ~” she whispered. “when will he or she be due?”

Squatting down, Zecora rested her hands and one ear against the girl’s stomach. The room was so quiet that you could hear a pin drop, as the zebra listened and closed her eyes. While she wasn’t exactly a traditional sort of doctor, her expertise, live experience, and the host of conditions she treated left her with the skill and expertise to access any number of medical conditions.

Eventually getting to her feet, the potion maker smiled broadly. “Since your progress is somewhat unique, I’d say you may have a week.”

“A week?!?” Bloom blared, launching to her feet. “But Ah’ve got school - not to mention Applejack, Babs, and Granny won’t be back for another two weeks!”

The news caught her totally off guard. It would be one thing for her family to return and find out she was knocked up, but Granny might just keel over to learn she’d had a foal! Clutching her face and shaking her head, she groaned into her hands.

“AJ is gonna kill me,” she whined.

Pushing himself up, Mac stood to his full height, stepped over, and wrapped his arms around his sibling. He wasn’t sure what he’d expected to hear, but learning they’d be getting a new member of the family so soon definitely took him by surprise. Attempting to console his finger, ensuring she couldn’t see his face, he stealthily lifted a hand and raised two fingers to his host. He’d been almost positive that he’d heard a pair of hearts beating in his sister, but the whirlwind of events made him unsure.

Nodding up at him, Zecora shifted her focus to the shaken mare. “Fate may be cruel, but do not fret, I have more news to share with you yet. A colt and filly, you have conceived, for your brother’s love has been fully achieved.”

“Twins?” Bloom breathed in disbelief.

Her fear and stress evaporated outright, hearing that she was going to have a pair of siblings of her own. As far as she knew, she’d never spoken to anyone about wanting to have a colt and a filly, a perfect pair to grow up and look after one another, so the revelation caused her heart to swell. Shifting in her brother’s arms, grinding her face against his pecs, she practically vibrated with giddy energy.

“Mac, you heard her, we’re gonna have twins!” she shouted, nearly toppling him over. “Now Little Mac can have a little brother and sister to play with!”

Though he didn’t understand how Zecora had come to such a conclusion, or exactly how his baby sister had switched from a ball of anxiety to overjoyed, he was both happy and relieved by the turn of events - unfortunately, her elation had an unforeseen consequence. Between the exceptionally crazy day, the emotional roller coaster, finding out he was going to be a father again, and the pair of succulent breasts squishing and leaking against his abdomen, his stallionhood swelled to life.

“Mac,” she bleated, hopping up and down, “Ah can’t wait to…” she went quiet, rearing back and peeking down at his crotch.

Attempting to politely push her away, bashfully grinning all the while, she grabbed his wrists. It was neither the time nor the place for him to pop a boner, but it was too late for that. Over the span of a week, her affection had shifted from endearing and heartfelt to tinged with lust, activating his apples like few things ever had. Hoping for nothing more than to beat a hasty retreat, lest they embarrass themselves further in front of their host, a chuckle caught his ear.

“There is no shame in your desires - in fact, it may yield fruit that I require,” Zecora giggled. Spinning around and trotting over to her work table, she retrieved a trio of empty flasks and a funnel. “It may be rude to make a request, but might I ask you to get undressed?”

Releasing her brother, Bloom ignored her then very damp dress and cast an inquisitive eye over at the zebra. “What for?”

“A mother’s milk and father’s seed are two components that I need. It may sound odd, but it is true; since you’re here, I could make use of you two,” she explained, strutting over to her bed.

Mac wasn’t exactly the literature type, having about as much familiarity with poetry as he had with rocket science, yet he had a pretty good notion of what the mare wanted. The mention of seed and milk was enough to let him know that their host wanted a donation from the pair of them, something he definitely hadn’t expected. Wondering how best to address the issue, rubbing his chin in thought, he failed to notice what his sister was doing until it was too late.

“What’re ya waitin’ for?” she called, shaking him from his thoughts. “Come on, we gotta help her out.”

Seeing her dress flutter to the floor, he looked up and watched her bare, softly swaying ass bouncing to the zebra’s bed. Be it from bad luck, poor timing, his growing fondness for Bloom’s blooming motherhood, or some combination of the three, his cock roared to life. Struggling against the denim of his jeans, threatening to tear free like a wild beast, his stallionhood didn’t seem to have any reservations about putting on an exhibitionistic show.

“For what it’s worth, I’ve seen a lot,” Zecora noted, eyeing the substantial bulge at his groin, “though I’ll admit this will be hot.”

Her remark sent his reservations flying out the window. Shaking his head and snickering to himself, he pulled his shirt up and off himself. Buck it - if Zecora wanted to see him getting frisky with his sister, she could have a front row seat. Maybe he was too exhausted to care, or maybe he’d steadily been losing his marbles - either way, he unbuttoned his pants, freed his raging tool, and pulled his jeans down his legs.

Practically throwing herself onto the pelt-covered mattress, Bloom positioned herself on all fours and angled her behind to her approaching brother. “Big Maaaaaaac,” she cooed, reaching back and spreading her pillowy buns, “come and give Mama some lovin’.”

“Here,” Zecora murmured, drawing the young mare’s attention away from her sibling. Placing a pair of wooden blocks beside her, she brought the funnel closer. “While he takes you from the rear, I’ll milk your mammoth tits, my dear.”

“Um - sure, go ahead,” Bloom blithely remarked, hastily moving the little supports and lifting her torso from the mattress.

Even with the blocks, her breasts only cleared the bedsheets by less than a foot. As she held herself up, ignoring the potion maker at her side, she arched her back and flagged her tail. Considering Zecora had been instrumental with her impending motherhood, and was supportive of her incestuous relationship, she was more than comfortable with letting the zebra ease the strain on her massive mammaries. As the woman’s fingers wrapped around her leaking nipples, coaxing the milk from her teats, she softly whimpered.

Watching Zecora tenderly milking his little sister, Mac grasped Bloom’s hips, stepped forward, and sank his stallionhood into her awaiting snatch. Her warm, welcoming depths embraced him, seemingly drawing him in, as he contentedly sighed. Though they’d only first started having sex less than a week ago, he could swear her interior had become more accommodating of his gargantuan size.

Holding her steady, while he fell into a steady rhythm, he lowered his head and watched his length slip in and out of her clinging marehood. The sight of her meaty lower lips being pulled out with his backstrokes and crammed in with each thrust were captivating, though not as hypnotic as the sight of her ass wobbling from the impact of his hips. Noticing the zebra shift slightly, attempting to more easily drain his sibling’s obscene tits, an idea occurred.

Leaning over her, he released her waist, slipped his hands under her arms, and straightened up. As he pulled her into a kneeling position, continuing to lazily pound her from behind, his thoughts wandered. If they had less than a week before the newest members of their family joined them, he’d need to make the most of her perilously short pregnancy while he could. Guiding her hands to back and to his hips, ensuring she could help steady herself, he reached around her torso.

“Oh Celestia,” Bloom gasped, while Zecora and Mac played with her breasts.

Her chest had, like the rest of her, become hyper-sensitive since she’d imbibed the potion from the day before, but she wasn’t about to complain. While it would take some time to get used to her body, she couldn’t be happier with herself. As odd as it sounded, after the shock of waking up to her pregnancy had faded a degree, she realized that she’d finally found her place - like her true purpose for the world had finally revealed itself.

Bucking back against him, she rolled her head back and peered up at his handsome face. What little fear she had about having a pair of foals bled away, as he smiled down at her. Somehow, so long as he was there to support her, she knew everything was going to be alright. Lost to the moment, staring into his emerald eyes, a sudden surge of pleasure shot through her.

Softly chuckling to herself, Zecora nonchalantly stroked her clit. It was hard enough not to cum her brains out with her brother by himself, so having a mischievous and apparently lecherous zebra thrown into the mix tested her endurance. Gnawing her lip, she sank her fingers into his hip and mutely urged him to increase his pace.

More than happy to oblige his baby sister, Mac slowly ratcheted up the speed and force of his plunges. She really was a feast for the senses; her looks were unparalleled, she smelled heavenly, her voice was that of an angel, and her taste was like the sweetest ambrosia - still, as unbelievable as it was, her impending motherhood had elevated her charm several times over. Squeezing her breast, causing milk to squirt into the wide-mouthed funnel, he craned his neck and kissed her.

He hadn’t thought the show of affection would be all that impactful, but he’d underestimated himself. As his tongue pressed past her lips, her entire body tensed. Hot, climactic juices squelched out of her cunt, bathing his upper thighs with her sticky goodness, while she came on the spot. His passion soared, finally comprehending that she didn’t merely attracted him for his body or his looks - no, his love for her got her off more than anything.

Harder and harder, faster and faster, his body moved like a vast, unstoppable machine. He hadn’t intended to slip into a rut lust, yet the revelation that their emotional attachment meant as much as it did was too much to bear. Before he knew it, the world around him had disappeared - replaced by Bloom and Bloom alone.

As much or more so than Babs, his sister sat as the pinnacle of femininity and, of that day, maternal beauty. If ever two ponies were made for one another, surely it was them. Losing himself to her, forgetting where he was, he inched closer and closer to his limit. The only thing in the world that mattered to him was family, and his baby sister would soon bring him a pair of wondrous new additions to the Apple homestead.

Uncaring of Zecora’s presence, listening to the sinfully sweet groans and whimpers of his mate, he crossed a threshold. His heavy balls pulled up to his groin, his length pulsed in tune with his thundering heart, and the head of his stallionhood flared and locked against her occupied womb, as he teetered on the brink. Though he tried to hold himself back, his death knell came from an unlikely source.

Knowing he was close, Bloom lifted a hand to his cheek, broke their kiss, and breathed hotly on his nose. “Ah love you, Big Mac.”

With those five simple words, he was undone. Draping his head on her shoulder, gritting his teeth and grunting with his final thrusts, he bathed her interior with his thick, virile essence. She came a split second later, holding him tight and nearly toppling forward, yet she somehow remained in place. Supporting one another, like they’d done for their entire lives, they rode out their tandem climax hand in hand.

Covered in sweat, steaming the air around them, they panted and fought to regain composure. As the overwhelming rapture of their release faded, usurped by the blissful, joyous afterglow, a silly smile graced their muzzles - that was until a throaty, lustful hum caused them to turn. Peering over at the zebra, seeing her hand beneath her grass skirt, they only then remembered that they weren’t alone.

“Most impressive, that much is true,” she mused, continuing to shamelessly play with herself, “now I just need your stallion brew.”

Holding up the empty flask, she grinned from ear to ear. She’d gotten enough fresh breast milk to make several batches of potion, yet there was one other component she’d asked for - one which would be most easily gathered while fresh. The siblings looked to one another and nodded, before they reluctantly started to move.

As Mac pulled out, with Zecora bringing the container to her nethers, Bloom spread her legs and clenched her pelvic muscles. No sooner had her brother’s semi-rigid shaft slipped from her confines than a deluge of creamy spunk rushed from her depths - thankfully, the zebra was ready. Thrusting the bottle into position, she collected most of the spunk - that said, her hand, wrist, and a sizable portion of the bed got drenched in the stuff.

Zecora grinned, pleased with the substantial donation she’d received, before she turned her attention back to her guests. “By all means, feel free to shower, there’s soap to wash and clothes to scour” she hummed, shuffling from the bed and getting to her feet. “But,” she added with a licentious glint in her eye, “if wish for something more erotic,” she purred, lifting her leg to reveal her nearly black, plump marehood, “a zebra mare is quite exotic…”

“Ah…Ah’ll definitely keep that in mind,” Bloom uneasily stated, unsure of how to take the offer. “C’mon, Mac.”

Nodding down at her, Mac led the way to the bathroom. “Eeeeyup.”

It wasn’t until they were in the restroom, having closed the door behind themselves, that they said another word. The offer of having a third had taken both by surprise, with neither being willing to act on it so suddenly. As Bloom waved her brother closer, she lowered her voice.

“Ah wouldn’t be mad if ya wanna give her a roll,” she whispered, taking his wrist, “because Ah know you’d still come back to me.”

WIth his hand guided to her belly, feeling the twins jostling ever so slightly, his semi-rigid stallionhood twitched. “Uh - Eeeyup!”

“I reckon we ought to start making plans for when AJ, Babs, and Granny get back,” she quietly groused, her shoulders slumping, “if’n we only got a week, we better - Mmmph?!”

Deeply kissing her, he pulled her to himself. There would be plenty of time to talk about possibly entertaining Zecora’s brazen request later - for the time being, he wished for nothing more than to savor his little sister’s company. With a trip back to the farm ahead of them, and likely a long, long night of planning how best to inform the family about the impending twins, they were in for a busy evening, yet that was of little consequence. They had each other, and that was all they truly needed…

Chapter 5

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Cradling a foal in each arm, peering down and watching them nurse from her engorged teats, Bloom couldn’t help but smile. Apple Butter and Apple Jam, her colt and foal respectively, were as fit and healthy as she could have ever dreamed - even if their little bellies seemed bottomless. As they suckled upon her, swallowing down mouthful after mouthful or rich milk, she lifted her head and looked to her left.

“Showoff,” Babs endearingly grunted, smirking over at her.

“Hey - Ah got two of these things for a reason,” she smugly countered, squeezing her little ones to each of her gargantuan bosoms. “It ain’t mah fault that I get to use ‘em at the same time.”

“Buncha hooey,” Granny Smith grumbled, looking over at her youngest grandchild. “Ain’t a dern thing natural about that chest ‘a yours.”

With an exasperated sigh, Applejack shook her head. “Granny, ain’t no need to be ornery.”

“I ain’t ornery,” the wizened mare practically pouted, turning her attention back to the quilt she was knitting. “Would’ve been nice to have a pair of udders like that when Ah was younger…”

As Bloom’s eyes steadily moved between her cousin, sister, and grandmother, she uncontrollably beamed. Not only had they all been remarkably accepting of her sudden maternity, but they’d practically bent over backwards to help her - still, she’d had no way of knowing things would turn out as well as they had. The day they’d returned home from their trip to Manehattan, less than a week after she’d given birth, was one of the most tense, stressful days of her relatively short life.

To say that AJ, Babs, and Granny had been surprised to find a pair of young foals waiting for them when they returned to the homestead would have been an understatement - to make matters worse, the news that the babies were the progeny of Big Mac and herself made for a very hectic afternoon. She’d had to recount the story of how she and her brother had fooled around no fewer than three times, clarify that she hadn’t intended to wind up pregnant, and explain that Zecora’s potion had expedited her gestation astronomically. By the time she’d addressed everyone’s questions and concerns, she’d barely had the energy to crawl into bed with her little ones.

Initially speaking, her family’s reaction had been a mixed bag. Babs seemed happy enough to have another new mother around, especially since their foals would be able to grow up together, and Granny Smith took the development in stride, but AJ’s reaction to her new niece and nephew was a bit strange. Be darned if she could put her finger on what had her sister bothered, but she didn’t have the time or energy to organize a Cutie Mark Crusaders investigation.

With the cat out of the bag, and her sister being more than tolerant of both her incestuous tryst and offspring, she’d forced herself to tackle a more pressing concern - school. Try as she might, and unwilling to have anyone else shoulder the responsibility, her newfound motherhood made trying to attend classes and studying for her exams an impossible task. She simply didn’t have the time to simultaneously get her diploma and raise her children - fortunately for her, Applejack managed to pull a few strings.

Heck if she knew how her big sister had done it, but AJ had convinced Cheerilee to let her take a significantly relaxed pace with her studies - albeit at the sacrifice of her summer break. While it was hard to organize a schedule for herself, keep care of her foals, and help with the construction of a nursery, ironically in Mac’s old bedroom, she somehow managed to forge a routine for herself; it sure as heck wasn’t easy, and she was left dead-tired at the end of each day, yet her perseverance inevitably paid off. Three months and many, many restless nights later, she got her high school diploma.

“Don’t overfeed ‘em,” Granny huffed, snapping Bloom from her reverie. “They’re gonna be bigger than Mac if’n you don’t stop.”

“Which Mac?” Babs snickered, gently jostling the titanic child in her arms. “Are you talking about my Mac or Big Mac?”

The eldery mare leered over at her grand-niece, fearlessly staring the hard-headed pony down. “Don’t you get wise with me.”

“Would y’all please pipe down,” AJ groaned, glowering at the bickering pair. “The last thing we need is to get the little ones all fussy.”

Turning her attention to her older cousin, Babs adjusted in her seat. “AJ, you mind if I ask you something?”

AJ shook her head, reclined in her chair, and crossed her arms over her chest. “Naw, I don’t mind.”

“So have you ever considered having kids of your own?” Babs inquired. “I mean, you’re an Element of Harmony, one of the most resourceful mares I’ve ever met, and you’re fit as a fiddle.”

“Ah…” AJ faltered, shot a fleeting glance over to her sister, and pushed herself up. “Ah reckon I might someday - anyhow, Ah’m gonna head into town for a bit. Do any of y’all need anything?” A series of polite noes followed suit, leading to her nodding and seeing herself out of the living room.

Bloom waited a few minutes, merrily continuing to nurse Butter and Jam, before she cleared her throat and drew Granny’s attention. “Is everything alright with her? She’s been actin’ kinda funny since y’all got back.”

Rolling her eyes, the matriarch leveled a finger at the young girl. “You’d be actin’ funny too, if you came home after a month’s vacation and found your baby sister with a whoppin’ set of twins.”

“Yeah,” Babs interjected, peering down at the young colt and filly, “they might not be as big as Little Mac, but considering you’re smaller than I am and they’re combined weight is heavier than my kid’s, that’s pretty damn impressive.”

“Horse spit, it ain’t that impressive. Agnis gave birth to quartets about forty years ago…” Granny paused, scratching her chin and thoughtfully peering up at the ceiling. “Or maybe it was sixty years ago - in any case, Apples bein’ fertile is like water bein’ wet.”

Babs immediately broke into laughter, still unused to how down to earth her great aunt was, leading to Bloom doing the same. Undeterred, or possibly provoked by their amusement, the geriatric mare launched into a diatribe about past generations and their prodigious broods of offspring. The silly, unexpected moment was just the thing to break the tension, but it wasn’t long before the mood took another turn.

“Hey,” Babs quietly began, shuffling closer to her cousin’s side of the sofa, “so - uh - how’re things downstairs?”

“Downstairs?” Bloom parroted, quirking a brow in confusion. It was only when she noticed a blush creeping into her cousin’s face that she figured out what she’d just been asked. “Granny,” she announced, bringing an abrupt halt to the senior’s rambling diatribe, “Babs and I are gonna go get some fresh air.”

“Fine by me, Ah gotta get some supper started soon enough anyhow,” Granny muttered, shifting her focus back to the unfinished quilt.

The duo of mothers cautiously got to their feet, keeping their children held to their chests, and strolled through the living room and out onto the porch. They probably could have discussed more intimate matters around the newly minted great-grandmother, but talking in private felt a bit more respectable. As they eased themselves into a matching pair of rocking chairs, with the warm rays of setting sun washing over them, they made themselves comfortable.

“Sooooooo,” Babs mused, an impish tone to her voice, “I know Mac’s been sneaking off to your room. Before you say anything, no, I don’t mind a bit - hell, the big bastard’s libido is more than enough to keep me satisfied. What I’m wondering is how you do it…”

“Ya mean, after I had the twins?” Bloom asked.

“Yeah, exactly!” the slightly older mare chirped. “I don’t know about you, but I was sore as a bitch for a few weeks after I had Little Mac.”

Bloom’s cheeks darkened, she looked away, and she ground her thighs together. “W…well Ah always heard that havin’ a foal was pretty unpleasant, but that won’t the case with me. Ah must’a cum four - maybe five times when I was in labor.”

Babs stared at her cousin in disbelief, eyes wide and jaw hung slack. “Bullshit! There’s no way.”

“A…and,” Bloom hesitantly continued, feeling her marehood hungrily clench upon itself, “that night, after Ah delivered, I may’ve sweet-talked Mac into plowin’ me in the hospital…” Save for the soft sound of rustling leaves and a slight breeze, the air between them fell totally silent. “What?! Don’t look at me like that!”

The older mare’s surprise gradually gave way to a perverse, impish smirk, as she leaned forward and gently punched her cousin’s shoulder. “Bloom, you little slut! Now I know why the Apple family is as big as it is!”

Sheepishly nodding, realizing there may be some truth to her cousin’s words, Bloom did her best to ignore the subtle ache in her loins. “Y…yeah, I reckon that does make a bit of sense.”

It wasn’t like she was ashamed of fucking her brother, yet it didn’t quite feel right that she’d become an adulterous element in her cousin and sibling’s relationship. Though neither Mac nor Bloom seemed to mind her inclusion, it felt a little funny tangling herself in a taboo love-triangle. Telling herself that she shouldn’t be so bashful, given that their kids were going to be growing up together, she smiled and looked out to the horizon - at least she started to, before hearing Little Mac start to protest.

“I swear to Celestia, I’m gonna have to pick up some formula for him - that or get some of that potion you picked up from Zecora,” Babs groused, lifting and gently rocking her fussy, clearly unsatiated foal.

Peeking down at Butter and Jam, only then realizing they’d stopped nursing at some point between the living room and porch, Bloom pursed her lips. “Give ‘im here, Ah ain’t quite empty yet.”

Babs didn’t need to be told twice, pushing herself up and stepping over to the girl. “Alright,” she whispered, “one at a time.” Bloom did likewise carefully rocking forward and standing.

Playing hot potato with a trio of babies wasn’t as easy as it would appear, yet they managed the job handily enough. With Babs holding Butter and Jam, and Bloom hefting Little Mac in her hands, they sat back down to bask in the sun. Even if someone had known that the two were related, and that their foals were delightfully inbred, it was a heartwarming scene nonetheless.

“Come here, you,” Apple Bloom cooed, pressing the fussy bab’s muzzle to one mountainous tit. The second his lips met her leaking teat, he latched upon her and started ravenously feeding. As a contented, almost sexual maternal thrill coursed through her, doing nothing to help her moistening panties, she grinned from ear to ear. “Ah gotta say, if’n he keeps eating like this, we might need to rename him Big Big Mac.”

Bloom stared down at the large colt, wondering just how much he’d end up growing, then slowly looked over to her own foals. She was overjoyed to have one child of her own, much less two, yet knowing they’d have a half-brother to grow alongside. If there was one thing that life had taught her, it was that family meant more than any treasure in the whole wide world.

Big Mac and Applejack had been there for her entire life, looking after her and being two of her best friends, but the age difference between them had always made things feel a bit jilted. There’d been times when she wanted to be with them, helping or accompanying them on their adventures, but she’d only just gotten old enough to even remotely feel like their peer - a problem her twins wouldn’t have to deal with. Butter, Jam, and Little Mac were born only a few months apart, so they’d be able to tackle life’s trials and tribulations together.

“You think they’ll get along together?” she faintly inquired, smiling down at the large, nursing foal.

“They’ll fight and stuff, sure, but I know they’ll be close - after all, just look at you, Big Mac, and AJ. I’d bet my bottom bit that you three got into it more than a few times, yet you’re thick as thieves now,” Babs quietly chuckled, not wanting to disturb the pair of placid youths in her arms. “But you wanna know one thing I’m absolutely certain of?”

Turning her chair to face her cousin, the scarlet-maned girl cocked her head. “What’s that?”

“That you’re gonna be - no, you already are a damn good mom,” Babs proclaimed. “I haven’t heard these two cry once since we’ve been home.”

“Shucks, it ain’t nothing,” Bloom bashfully sighed, feeling her flush return. “If’n Ah’m being honest, Ah just follow my instincts with ‘em.”

“Well your instincts must be a good bit stronger than mine - shit, I was a nervous wreck when Little Mac came into my life,” the older mare laughed.

Hearing the remark, Bloom straightened up. “Speakin’ of, if you ever wanted me to look after Little Mac for ya, Ah’d be pleased as punch. Now that Ah’m done with school, Ah’ll have plenty of free time.”

Babs rocked back in her chair, staring over at the younger girl. “You mean it?”

“Of course Ah do! Ah figure you wouldn’t mind havin’ some time for yourself, and Ah really wouldn’t mind tendin’ to the little - well, not-so-little guy,” Bloom giggled.

“If that’s the case, I might take you up on it. When I was in town the other day, Filthy Rich told me that he’s looking for a cashier for his shop. Considering we got two more mouths to feed, it might not be a bad idea for me to start pulling my weight -” Babs muttered, peering at the orchard, “that or I could work here at the farm.”

“Well Ah’m sure AJ and Mac wouldn’t mind you lending a hand,” Bloom merrily noted. “As a matter of fact,” she continued. Spotting her sister appear from behind the nearby barn, she silently waved an arm to draw her sibling’s attention.

AJ paused and looked at them, only reluctantly turning to trot up towards the porch. Her pace was slow and measured, she kept her eyes on the ground, and her shoulders were slumped. Though it was clear to see that something was bothering the stalwart mare, it was an absolute mystery as to why she seemed so out of sorts.

Stopping a half-dozen paces from where the pair sat, she cocked her hip and adjusted her stetson. “What is it, Bloom?”

Apple Bloom had been mere moments from bringing up the subject of Bab’s possible employment, but seeing her sister in such an odd state derailed her thoughts. It had been a bit odd for AJ to excuse herself in the living room, but now she knew something was wrong. The smile fled from her lips, as she anxiously adjusted her nephew.

“Babs was wonderin’ if she could chip in around the farm,” she murmured.

“Ah don’t see why she couldn’t. City slicker or not, she’s got the muscle and build to do put some work in,” AJ disinterestedly replied. While she didn’t seem opposed to having their cousin contribute to the homestead, there was clearly something nagging at her - something she didn’t want to address.

Steeling her resolve, Bloom drew a deep breath, slowly exhaled, and looked her sister in the eyes. “What’s wrong, Applejack? You’ve been actin’ kinda funny since y’all got back from Manehattan.”

AJ immediately looked away, turning back towards the barn. “Ah don’t wanna talk about it. Just holler for me once dinner is -”

“Come on, Applejack, can’t you see that your sister’s worried about you?” Babs interjected, causing the mare to stop dead in her tracks. “Just be honest with us…”

Wheeling back around, AJ leered at her cousin. “Don’t you go usin’ that word with me, Missey!”

“Why?” Babs countered, steadily standing to face the Element of Harmony. “Your sister was honest enough to spill the beans about what she and Mac did! I was -”

“She ain’t mah sister!” AJ blurted.

A deathly silence fell over the trio, with a sudden panic settling over Bloom. “If…if Ah ain’t your sister, what’s that…” the words died in her throat, as she noticed tears forming in her sister’s eyes. “A…Applejack?”

“Bloom,” AJ uneasily began, her voice quavering ever so slightly, “you’re mah daughter.”

Turning her head and looking between the two, with her mouth agape, Bab’s eyes went wide. “How? Who’s the father?”

Bloom kept her lips sealed, processing what she’d just heard. While was far from a mathematical genius, typically scoring Bs and Cs in her arithmetic, she did some quick calculations. She’d always considered it odd that Pear and Bright had conceived Applejack and Big Mac over a decade before her, like something hadn’t added up, but now it made sense. She hadn’t lost her parents shortly after being born, they’d been there with her, looking over her the whole time.

“Why?” she whispered, the breath hitching in her throat. “Why didn’t you ever tell me?”

AJ’s expression was singular, a mixture of woe, regret, and anger, yet that didn’t stop her from acting. Trotting up and onto the porch, she marched over the deck, extended her arms, and hugged the shocked young mare. “We wanted to - lord knows, we wanted to, Bloom,” she sniffed, trying and failing to remain composed.

In one of the rarer moments in her life, Bloom wasn’t sure what to say. She certainly hadn’t expected to learn that her brother and sister were actually her father and mother respectively, but she inexplicably knew it had to be true. Taking care to secure Little Mac in one arm, she hugged her mother as best she could.

“Why didn’t you tell her?” Babs respectfully pressed. “I mean, isn’t it a thing for Apples to fool around with family?”

“Not when they were as young as AJ and Mac,” Granny halfheartedly grouched, tottering out the door and onto the wooden deck. “It’s one thing for two adults to have a roll in the woodshed and wind up with a youngin, but it ain’t that simple when the two ain’t hardly adults themselves.”

Bloom wiped her cheek on AJ’s shirt, drying a tear from her cheek. AJ and Mac must’ve been pretty young to conceive her and would’ve been in no state to raise her by themselves - nevertheless, something didn’t add up. To be sure, after spontaneously calling who she’d assumed to be her brother Daddy, he would have had some sort of reaction - that was if he was aware of their true relationship to one another.

“Does Big Mac know?” she asked, pulling away and staring up at her mother.

Breaking their embrace, AJ stepped back and awkwardly rubbed the back of her neck. “Well - uh - ya see-”

“Naw, he don’t know!” Granny testily asserted. A brief moment passed, holding everyone’s attention, until she rolled her eyes and threw her hands up. “We had to do something! After finding out he was gonna be a dad, the big lug was happy as all get-out and too darn hard headed for his own good.”

“Bloom,” AJ sighed, taking the girl by the shoulders, “you don’t understand; he would’ve told everyone that we’d knocked boots and had you. You know good and gosh-darn well that Ah ain’t one to stir the pot, so having all of Ponyville knowin’ that you were our foal would’ve raised too many questions and too many eyebrows.”

“But you’re totally fine with Bloom having two foals with her father,” Babs snorted, looking none too pleased with the revelation.

“Don’t you get sassy with me,” Granny quipped, wagging a finger at the rebellious mare. “For starters, this was before an Apple was an Element bearer and best friends with the Princess of Friendship - secondly, if’n we play our cards right, ain’t nobody gotta know where the foals came from. Folks might raise a few questions and wonder who the father is, sure, but they can wonder until the cows come home.”

Bloom stepped back, holding Little Mac to her teat. To say she was surprised to find out that her parents weren’t dead would be an understatement of monumental proportions. A curious mix of emotions welled up within her, but one rose higher than the rest - regret. If she’d only realized that AJ and Mac were her parents, she would have cherished them even more than she already did - moreover, the fact that they’d done something to Mac didn’t sit well with her.

Staring daggers at her grandmother, a righteous indignation filled her. “What did y’all do to him?”

Granny’s shoulders slumped, as she shuffled forward. “We used a spell to wipe the memories out of that hard head of his. Can’t know something you don’t remember.”

Seconds from chastising her grandmother, the sound of a faint sniffle caught Bloom’s ear. Looking over, she only then noticed tears streaming down her mother’s face. Be it from the impassioned exchange, the cat being out of the bag, or some combination of the two, the normally even-tempered mare had lost her composure. Seeing the woman cry was yet another unforeseen and wholly unexpected development in the emotionally charged afternoon.

“We tried,” AJ tearfully professed, burying her face in her hands. “We really tried our best to raise you like one of your own, but it was for your own good. The thought of you gettin’ picked on in school, having to grow up knowing your parents were close kin, was something we couldn’t put you through. It was for your good - Ah swear it was.”

There were times in one’s life where words weren’t sufficient - for Bloom, this was one of those times. Walking over to Granny, she lifted and offered the then-sated Little Mac over to the wizened mare. She couldn’t care less if she was shirtless and out in the open, there was something she needed to do. Trotting around to Applejack, she wrapped her arms around her forlorn mother.

It took everything she had not to cry, but she needed to be strong - not just for herself, but for one of the ponies she held most dear. As she held Applejack in her embrace, drawing the older woman’s attention, she gave the broadest smile she could muster. The circumstances may have been odd, exposing her as the offspring of a pair of siblings, yet there was one thing that hadn’t changed - her love for her family.

In spite of grappling with the bizarre circumstances, she tightly hugged her mother. “Ah…Ah can’t really say I agree with what y’all did to Mac, but…but…” she gulped, giving voice to something she’d always wanted to say, “I love you, Mom.”

And just like that, with that one simple word, the dam broke. AJ’s composure was sundered outright, she pulled her daughter close, and she openly sobbed. Seeing her mother in such a state, after discovering her mother had been so close to her all along, Bloom swiftly followed suit. Holding one another, the pair didn’t suffer alone for long.

Babs leaned in and pressed herself against the duo, while keeping hold of Butter and Jam, with Granny Smith following suit moments later. While some families may have been undone by something so conventionally taboo, the Apple family would only grow stronger by such an event. The clan now had three new members - members who’d be loved, cherished, and cared for with all the heart that the household could muster.

Minutes dragged by, before Bloom finally released her mom and shied away. “So should we tell Mac that he’s…” she trailed off, letting the question hang.

“Ah suppose it ain’t gonna hurt anything, given the circumstances,” Granny sighed, giving a small shrug. “Ah figure it’s only a matter of time until someone spills the beans anyhow, so sitting him down and telling him that his newest youngins are his half-grandkids ain’t gonna hurt nothin’.”

“You sure?” AJ countered, wiping her face and straightening her shirt. “Seein’ as how he’s still ridin’ high with his three foals, it might not be the best time to break the news to him.”

The elderly mare leveled a finger at her grandchild and nodded. “That’s exactly why we should tell him now, if we tell him at all. Ah reckon you could tell him we’d built the farm on a volcano, and he wouldn’t be all that bothered.”

“I just wanna see how he takes the news,” Babs snickered.

“Well we ain’t gonna have to wait for too long,” Granny muttered, peering past the group and to the road. The trio of younger mares turned and looked to the well-beaten path, spying a large, unmistakable silhouette plodding closer. “Just a matter of who gets to tell him…”

Without saying a single word, Bloom leapt from the porch and took off at a full sprint. She loved Big Mac with all her heart, even more so now that they’d become lovers, and if there was anyone who’d earned the right to tell him he’d missed out on decades of being a father, it was her. Clad in nought but her skirt, with her breasts swaying and wobbling on her chest, she rushed to meet the stallion who’d won her heart.

Mac sighed, readjusting the sack of oats on his shoulder for the umpteenth time. It hadn’t been a particularly trying day physically, but he felt exhausted. Having to explain how he’d managed to sire a set of twins, with his sister noless, to Granny, Babs, and AJ had been one of the most nerve wracking moments of his life, but everything had gone smoother than he’d anticipated - that being said, his troubles were far from over. Having a trio of foals to look after, alongside the rest of his family, would be a prolonged and taxing ordeal.

Lifting his head and looking to the farmhouse, he spotted a hastily approaching figure; he could tell at a glance that it was Applebloom, but something wasn’t right. It was all well and good for her to be happy to see him, but seeing her running so frantically set off alarm bells. Glowing, praying nothing was wrong, he eased the sack down and broke into a jog.

As he made his way to meet her, slowing once he was a few dozen yards away, he slowed, however Bloom wasn’t nearly as restrained. Before he could react, crossing the gap between them with staggering speed, she bounded into the air and tackled him to the ground. Small though she was, her additional heft and momentum left him on his back in a heartbeat. As he reflexively held her back with one arm, she peppered his neck with kisses.

Reaching his chin, she pushed herself up and stared down at him. “Sorry about that, Ah’m just excited to see ya!” she bashfully giggled, leaning in and kissing the end of his nose. His nonplussed expression must have done the trick, telling her that her explanation didn’t quite cut the mustard, prompting her to clear her throat. “Ya know how you’re happy to be a father?”

He nodded slowly, giving a mute, silent answer to the peculiar question. “Eeeeyup.”

“Ain’t no easy way to say this, so Ah’m just gonna put it out there. Turns out you’ve been a father for longer than you thought,” she continued, only exacerbating his confusion. “Ah’m your daughter!”

Grabbing her shoulders and pushing her up, he steadily got to his feet. He’d heard all sorts of outlandish stuff in his time, but this may’ve taken the cake. There was no possible way he’d forget having a kid, let alone one as wonderful as Apple Bloom, so the notion was absurd. Shaking his head, dismissing the idea outright, he turned and plodded back to the oats he’d abandoned - that was until his sister grabbed his wrist.

“It’s true, gosh darn it! Granny Smith and Applejack told me they brainwashed you into forgetting everything!” she insisted, pulling him closer.

“Yeah,” Applejack somewhat reluctantly admitted, having trotted up to greet him, “it’s a long story, but it’s the truth.”

“Sure is,” Granny added, handing the oversized foal over to AJ. “We can go over the details inside, but these youngins don’t need to be out here in this cool weather for too long; Ah thought y’all would’ve known better than that.”

“Yes, Granny,” Babs and AJ replied in unison, smiling to one another and turning back to the house. The wizened mare followed along behind them, leaving Bloom and Mac to themselves.

The pair locked eyes, as a slight breeze cut through the orchard. Though neither said anything, they both understood that their lives had taken another strange turn. Initially siblings, then lovers, and ultimately a father and daughter, their relationship had been one heck of a roller coaster, yet they cherished one another all the same. Shifting her hand lower, Bloom laced her fingers with his.

Trotting alongside the massive stud, Bloom craned her head to look up at him. “Mac, can Ah ask you somethin’?”

Still grappling with everything that had transpired, it took Mac a moment to reply. “Eeeyup.”

He wasn’t sure if Discord was somehow involved, but he’d managed to involve himself in the most incestuous love family that Equestria had ever seen. He’d sired a foal with his cousin, apparently had conceived a kid with his sister, then knocked up his daughter - if ever there was a wild tale of love, passion, and debauchery, he’d never heard of it. Still very curious to hear the specifics as to why he didn’t recall becoming intimate with Applejack, yet willing to wait until he could get the full story, he grinned over at Bloom.

As he smiled upon her, she drew to a halt and turned to face him. “Is…is it alright if Ah still call you Daddy? Not in a lewd way or nothin’, but genuine like.”

Out of all the things she could have possibly asked, she said quite possibly the only thing to pluck at his heartstrings. He’d always wanted to raise a child, yet he’d unwittingly done so and tended to her since she’d been brought into the world. In one swift, careful move, he leaned over, scooped her up, and brought her into a Princess carry. He couldn’t care less how she was related to him - the only thing that mattered was that she cherished him as much as he cherished her.

“Ah love you, Daddy,” she hummed, pressing her cheek against his chest.

Feeling as though he was walking on clouds, he beamed. “Ah love you too…”

Ride Below the Crupper

by Some Leech

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5