First things first...
The gravel of the road cracked as the carriage, dragged by four pegasus guards with perfect white fur and each of robust build, clad in golden armor, came to a halt in front of the ornated gates of a grand estate. Two alicorns, an elegant, tall, white mare wearing golden regalia and crown, and a shorter, midnight-blue one, similar in grace, but wearing black, sparkling jewellery stepped out of it, then the taller one dismissed the pegasi with a wave of her hoof, the carriage taking off by the power of four pairs of wings, slowly merging with the horizon, which slowly assumed different hues of orange and red, signalling the sunset's approach.
"Well sister, here we are." Luna spoke with a joyous tone, looking up to her elder sibling with a wide smile, who turned her head to look at her with a gentle smile, answering with relief in her voice.
"About time we decided to do this... Vacation for an unpredefined amount of time... Just what I need." She calmly started walking towards the gates, her long horn igniting with her golden aura to unlock the gates for the two of them, the sisters beginning their walk through the well-kept gardens towards the majestic mansion in front of them.
"Let's just hope that 'unpredefined' will last at least a month, and that Twilight will be able to lead the country without having to call us back..." Luna enjoyed the sight of the well-groomed bushes, evenly cut grass, and the blooming flowers scattered aestethically throughout the garden. As they approached the mansion, they walked past a large, ornated marble fountain with several levels, each having small basins to keep the water until it owerflowed, falling onto the level below with a comforting, continuous susurration.
"I pray to be left in peace for the next few weeks... I'm really looking forward to this holiday we will spend together... All we have to do is raise the Sun and Moon, and otherwise, complete freedom." The princesses walked up the polished stairs to face a set of ornated double-doors, which were quickly swung right open by the solar diarch, revealing a richly ornated interior, first, a main hall coming into their view with a wide flight of stairs leading to the upper floor. The floor and the stairs alike were covered with thick red carpet, ornated with golden fibers woven into it. To their right was the archway leading to a lounge with a similar carpet, the walls being of black marble, with its beautiful natural pattern, ornated with gold, lanterns placed on certain spots along the wall. The windows of the room had their curtains closed, them too being red fabric, with golden edges to match the overall design.
The lanterns illuminated the room with a soft, warm glow, the furniture matching the style of the walls, soft couches and armchairs arranged around a dark oak coffee table. On the other end of the lounge was a small bar section with an isle, chairs, and on the other side of the isle, racks filled with bottles of various drinks of every kind, exotic and familiar, strong and mild. The room had two more doors, one leading to the garden behind the mansion, the other, directly into the kitchen.
The walls were decorated with paintings, mostly landscapes, or the views of larger cities of Equestria, all the hoofwork of one, very talented and experienced artist. The room also had a fireplace, a couch placed right in front of it, and the rest of the walls were occupied by carved, ornated bookshelves.
On the left of the sisters was a similar archway, leading to a dining hall, with a rather large dark oak table, with enough chairs to seat twelve ponies. The room also had doors leading to the back gardens, and the kitchen.
However, the sisters turned to the right, walking into the lounge and taking in its decoration. Celestia slumped down onto the couch, stretching out with an elongated moan, relaxing in a reclined position afterwards.
Luna chose the direction of the bar, standing in front of the bottle rack, pondering what should they be drinking, before her gaze settled on a wine bottle with a crest, having a white raven on a black background, holding a bunch of grapes in its beak. It read “Corvo Bianco”, and right below that, “Blood of Manticores”, indicating that it was a red wine with a strong, characteristic flavor.
She found an opener in a drawer of the isle, and took two wineglasses from a cupboard. The cork left the mouth of the bottle with a pop, and the deep red liquid inside was spilled into the prepared glasses, filling them quickly, before being set down onto the table once more.
Luna took the two glasses with her magic and went to sit down onto the couch right next to Celestia, offering a glass to her sister. The white mare took it in her own golden aura, levitating it to clink the two glasses together, then the siblings downed a few gulps of the wine, Celestia finishing with a content sigh.
“Thank you for the refreshment, sister. Do tell me, what kind of wine is this? I like it quite a lot.”
Luna waited for a few more seconds, until the aftertaste cleared from her mouth, before answering, holding the glass up towards a light and swirling its contents around a few times.
“It comes from a small wineyard to the south from Canterlot, the name is Corvo Bianco. They do not produce much wine, but it is quite refined and delicate. This red wine is one of my favorites.”
Celestia nodded in response to the answer and once more lifted the glass to her mouth, then set it down onto the low table nearby.
“So... I noticed there aren’t any servants around... Where are they?”
“They will only arrive tomorrow. I wanted to spend the first night of our retirement with you, and only you, big sister.” Luna stared deeply into Celestia’s eyes with affection, drinking more of her wine, not setting it aside like her sister did.
Celestia smiled at her sister’s words, holding her gaze with the same gentle affection as Luna. At this moment, she truly felt close to her sister, a warmth spreading in her chest, which she attributed to the wine she consumed.
“So, what are we going to do in our free time? Now that we have so much of it, I am out of ideas...”
Luna slid closer to her, swiftly emptying her glass, then setting it down onto the table, never breaking eye contact. Then, she proceeded to wrap her front hooves around her sister’s waist, closing whatever distance was between them.
“I do not know either, but I believe we have time to think... And, whatever we do, I want to do it together with you... Every second of this vacation I want to spend with you...” She too felt the same kind of warmth, but she knew it wasn’t the wine. She raised one hoof and dragged it down on Celestia’s cheek in a gentle, caressing motion, feeling its softness and warmth.
Celestia’s cheeks lit up pink with a small blush, while Luna continued to stare into her eyes. Her beautiful blue irises met Celestia’s magenta jewels, and the sisters could see their reflections in each other’s sparkling eyes, yet they were not interested in the reflections, instead lost themselves in the beauty of their eyes.
Luna’s heart was pounding in her chest in a rapid tempo, as she was about to do what it told her. Their faces got closer and closer, their muzzles almost touching. Almost. Just a little bit more. Closer.
And then it happened. Their lips met in a soft kiss, Luna’s hoof trailing from Celestia’s cheek to her neck, slowly sliding down along its side while she kept their lips pressed together, closing her eyes and abandoning herself to the moment.
The alcohol helped deal with the little voice in her head that constantly repeated to her: “She’s your sister! This is scandalous and unnatural! Stop!” The voice slowly faded into silence, and all Luna could register was the perfect pair of lips that were pressed to her. The taste of wine still lingered on them while she held Celestia close, and she could feel a pair of hooves wrap around her midsection to keep her close.
This sent her joy to new heights, her heart pounding harder than ever before on her ribcage. Her sister was enjoying the kiss! She had imagined this moment countless times before. As she thought back, she always had a crush on her elder sibling. She always looked up to her, admired her, looked for her company constantly, sought her praise and appreciation.
The kiss did not only warm up her chest though, it also made her feel rather hot in a different place as well, while her mind raced through the options of what could happen after this. All options resulted in pleasure, and incestuous deeds, that were so wrong, so outrageous, yet that only served to make it more arousing and more appealing to her.
The long kiss had to end though, the alicorns pulling away, panting for air as they continued to embrace each other. Both their cheeks were burning crimson from the intense blush, and the intense emotion coursing through them. Celestia was the first to speak, though interrupted occasionally by her need to breathe.
“Sister... W-we... we kissed... And... I think I just found out what do I want to do with my free time... Indeed we would be spending as much time as possible together...” Celestia grinned winking at Luna and lowering her eyelids in a come-hither gaze, fluttering them just for a second.
Luna was overjoyed. Her dreams were coming true! Her sister shared her feelings, and was ready to take it to another level.
“We should check the bedroom then, what do you think, sister?” She broke the hug and stood up, eager to see how the evening will unfold. Celestia aggreed with a nod, and the sisters ascended the stairs leading to a set of double doors leading to the master bedroom, one door having Celestia’s cutie mark, the other having Luna’s.
As the younger sister opened the doors of the master bedroom, it was clear that the design was different, the dominant color not being red and gold, instead hues of violet and deep blue. In center, and occupying most of the wall opposite from the door was a large bed, covered with purple bedsheets and several royal blue pillows at the head of it. The room had a large window above the bed, looking over the gardens behind the mansion, but its curtains were shut. There was a door leading to the balcony, and another one leading to the bathroom.
The room had two vanity tables with mirrors and drawers, two wardrobes, a sofa, a bookshelf and a fireplace with a thick rug in front of it, comfortable and large enough for two to lay on.
“We should tend to our duty first, though...” Celestia walked out to the balcony, making haste, since they probably were late with the progressing of the day-night cycle. Luna rubbed along her side like a cat, and the sisters ignited their horns, Celestia lowering the Sun, Luna raising the Moon. They stood for a few moments, looking at the glimmering stars and the peaceful estate, but they wanted to share their love, to be closer than they ever were, to take it to a passionate, physical level as well.
As they went back into the room, Celestia began by quickly removing her golden shoes, regalia and crown, setting it on one of the tables using her magic, while Luna did just teleport them off of herself, jumping onto the comfortable bed, splaying out on her back.
Celestia climbed up as well, onto Luna, then pressed her lips against hers once again, with more passion this time, her tongue dragging along the younger sibling’s lips, urging her to open her mouth. Luna’s lips parted, granting entrance to Celestia’s tongue, which swiftly began to explore her oral cavity, while Luna wrapped her front hooves around her chest, reciprocating the tongue movements, the slippery appendages coiling and lapping at each other, the blue alicorn moaning into her sister’s mouth, the heat between her legs intensifying with each stroke of Celestia’s tongue.
The princess of the sun herself got more and more aroused as well, even though she couldn’t entirely wrap her mind around the fact that she was currently going down on her sister. The blood they shared was not important now, all that mattered was their love, and the lust accompanying it, and the ruler of Equestria gave in to the desires of her body and her heart, and continued deeply kissing Luna, pinning her to the bed with her front hooves.
The sisters soon began wanting more than a deep kiss, and Celestia broke it, a long strand of saliva connecting their lips for a while, before she pressed her own to Luna’s neck, just below her jawbone, earning a sharp gasp from the smaller mare. She continued placing kisses all along Luna’s neck and throat, methodically going downwards, occasionally suckling on her neck, leaving hickeys and wet whorls of fur as she went, Luna biting down her lower lip to muffle her needy moans.
And Celestia continued relentlessly, going lower and lower, compelling Luna to release her, her front hooves now gripping the bedsheets as Celestia licked along her collarbones, then back along her throat, stopping under her chin, then down again, trailing kisses down her chest. As she reached Luna’s stomach, the mare involuntarily arched her back and bucked with her hips. Small moans were escaping her lips as Celestia licked and suckled down along her stomach, stopping mere inches above her flower.
“Oh my... Does your sister turn you on this much?” Celestia teasingly said as her muzzle was above Luna’s mare bits. They were most definitely soaked, her arousal dripping down along her lower lips, over her plothole, drenching the dock and base of her tail.
“Y-yes... please... Tia... I need it...” She shuddered in pleasure as she felt Celestia’s breath on her blossom swollen with arousal, while her juices leaked freely.
Celestia nuzzled against her sister’s inner thighs, mere inches away from her core, giving a few licks to make her inhale sharply, her body tensing. Deciding to move further, she cleaned the dock of her tail with her tongue, causing more moans to escape the lunar princess’ lips, then, led by the trickling wetness of her sister, lapped at her ponut, causing a shiver run down Luna’s spine, her hooves gripping the bedsheets tighter and her hips again bucking.
“Please! Sister! I... aahn... I n-need you... Please...” Urged by her sister’s pleas, Celestia flatly pressed her tongue against her moist lower lips, then applied enough pressure to spread her petals and push into her inner caverns, causing the younger sister to let out a loud, throaty moan.
Celestia further pressed her tongue into Luna’s love tunnel, exploring her inner walls with abundant licks, her front hooves still on her sister’s chest and upper body, rubbing in random patterns while Luna lost herself to the pleasure provided to her by her sister, arching her back and gripping the bedsheets harder as each lick sent her closer and closer to a mind-blowing orgasm. She was also quite vocal, her loud, blissful moans assuring Celestia that she was doing good down there.
Celestia covered her sister’s entire marehood with her mouth, her lips making out with Luna’s lower ones as her tongue slathered her inner walls, making wet, slurping noises that were music to Luna’s ears. As the smaller mare got closer to her peak, her volume rose gradually, and her mind started emptying itself.
Luna had brought herself to orgasm countless times using her hoof, alone in her room with her heat, while imagining all kinds of lust-filled scenarios, all about her sister, yet she couldn’t ever imagine that actually being pleasured by her sister would feel so delightfully good.
As Celestia increased the speed at which her tongue thrashed around inside Luna’s wet tunnel, the mare began to see white as her eyes rolled back, her hips constantly bucking at the verge of total bliss. Celestia then added her magic to the mix as well, her golden aura enveloping Luna’s sensitive clit, audibly buzzing as it vibrated furiously on the sensitive nub.
This was the moment when Luna couldn’t hold back anymore. Her body wildly spasmed on the bed as a scream-like moan left her mouth, her juices gushing out in several squirts into Celestia’s mouth covering her flower, her back arching up so high it started to strain, her whole being shaking as she saw nothing but stars exploding in her vision, the heavenly state never seeming to end, and as her lips formed her sister’s name between moans over and over again, she felt that this was the strongest, most intensive, and best orgasm she had experienced up until that moment in her life.
As her sweat-drenched body slowly fell limp on the bed, and her moans were switching places with gasps for air, her orgasm came to a halt, the mind of the heavily panting lunar princess was still hazy, but she was the happiest mare of the world. Her deepest, most hidden and denied, most arousing fantasy has come true. Her big sister had just made her cum. Hard. Her sister loved her, and she loved her sister more than anything.
Even as her mind was clouded by the aftermath of her orgasm, Luna could feel something warm slide next to her onto the bed. She instinctively turned to wrap her front hooves around Celestia, nuzzling into the crook of her sister's neck happily, her breathing slowing down and the fog starting to clear up.
"That was absolutely wonderful, Tia... Best one ever..." Her next thought was that probably her sister was in need of relief either, and she felt compelled to help her, and at least try to make her feel as good as she had made her.
"My sister does not deserve any less than that." The solar princess indeed was rather needy herself, but did not bother to point it out to Luna, since she probably exhausted her with her tongue already. She wasn't entirely right, since Luna was indeed tired, she felt the need to return the pleasure her sister gave her. The younger sibling raised herself from Celestia and planted a kiss on her lips, lingering for a few moments, savoring her own flavor on them.
"I know you want me as badly as I want you... And you deserve to be repaid for what you've done... Do not even think about denying my offer, I can feel you need the release too.." Luna shakily stood up, and so did Celestia, lowering her front half and kneeling down with her front legs, while her hinds were straight, keeping her plot high in the air. Then, the princess of the Sun swished her tail to the side, revealing her leaking honeypot to her sister, her juices already trickling down along the inner part of her thighs.
Luna was perplexed at the sight of her sister's moist lower lips. She could not move, speak, nor tear her eyes away from them. She just sat there, with her mouth agape, her tongue dangling out of it, intensely salivating. She wanted to taste those perfect petals. She wanted to worship her sister. She sat closer and nuzzled into Celestia's solar cutie mark, enjoying how her muzzle sunk into her soft, pillowy plot, nuzzling with more pressure, her ears flicking at the sound of Celestia humming in a relaxed tone. Luna wrapped her two front hooves around Celestia's left hind leg, her tongue snaking out of her mouth to lap at the center of the Sun, then continued doing so in wider circles, following the pattern of the cutie mark as she closed her eyes and continued covering her sister's flank with her saliva.
Celestia enjoyed the care her sister was giving her flank, and slowly started letting her hindquarters down as well. As Luna noticed this, she released her leg and once more sat behind her, spreading her legs wide as her sister laid on her stomach. She then buried her muzzle in her thighs, lapping and nuzzling at the drenched fur there, intoxicated by the scent and taste of her sister's arousal, earning quiet moans from the elder alicorn. With every lick and nuzzle she got closer to her marehood, which continued slowly leaking juices.
Luna internally wanted to make her sister wait a little more until she dove in, but she could not hold back any longer, and dragged her tongue up swiftly on her sister's clitoris, Celestia immediately responding with a louder moan, and her love tunnel convulsing, allowing Luna a glimpse of her damp inner walls. She decided she wanted more, and placed her hooves onto both cutie marks of her sister, groping and kneading her deliciously plumpy flanks, while her magic gently spread her labia apart, seeing strands of juices connecting them. Then, Luna dove in with her muzzle into the delightful pussy in front of her, some of it actually slipping into her sister as she thrust her head forward.
"A-aaah! Luna!" Celestia's wings suddenly unfurled at her sides with a loud 'pomf', while she threw her head back and moaned out, her sister's mouth opening inside her cavern to allow her tongue out. Luna licked, lapped and slurped, wildly thrashing her tongue around in her sister's love tunnel, dragging the juices she collected back into her mouth, gulping occasionally, moaning into Celestia's core, absolutely loving the taste, the vibrations of her vocal chords transmitting into her, further heightening her pleasure.
The lunar princess' hooves never stopped rubbing and massaging her cutie marks while she kept on making her sister moan out louder and louder with each stroke of her tongue, each subtle movement of her muzzle inside her as it closed and reopened on occasion as she gulped a mouthful of her tasty mare juices down, and when Luna decided to do exactly as Celestia did before, enveloping her sister's clit in her magic and beginning to constantly rub and tease it with mild pressure, Celestia bit down a pillow to muffle her orgasmic scream.
The princess of the sun came with force, her tunnel clamping down hard on Luna's muzzle and tongue, squirting her juices into her mouth and covering her muzzle in them, some staining the fur of her midnight blue cheeks as well, and Luna couldn't gulp, lick and lap fast enough to collect all the marecum her sister produced, the white alicorn continuing to bite down on the pillow to suppress her moans, shutting her eyes tightly as her sister kept on the licks and the kneading of her flanks, effectively prolonging her intense orgasm, her body shivering and trembling, her wings becoming stiff as rocks while her bliss lasted.
Finally, it came to an end and she slumped down, her wings limply splaying out on the bed. Celestia released the pillow from her jaw and relaxed with her eyes still closed, panting in the afterglow, while Luna removed herself from her naughty bits, not bothering to wipe her muzzle and face clean. Her head was swimming and she was breathing heavily as well, the taste of her sister's juices still dominating her mouth. Slowly, all her exhaustion from before came back to her as the heat of the moment faded, and she gently lifted one of Celestia's wings in order to lay close to her side, then let it gently drape over her as she cuddled close, wrapping her front hooves around her chest and laying one hind leg over her flanks.
Luna sighed joyfully as Celestia turned her head to nuzzle into her mane. Fantasies she had for so long were fulfilled today, desires she repressed until this day were let loose, and she couldn't be happier as she shared all of this with her beloved sister, the most precious pony, the one who was the closest to her. They completed each other, as if they were corresponding halves, satisfied each other completely, and as Luna slowly drifted off to sleep, one last thought surfaced in her mind:
It's a shame siblings cannot marry...