One of the dogs in Fluttershy's care, Rex, is dealing with sexual frustration. Out of options, Fluttershy decides to cross a line to help him. But once that line is crossed, can she come back?
Fluttershy was worried. She was very worried, as she always was for her animal friends. She was worried for a dog in her care. A shepherd boy, called Rex. Rex was sad and anxious and frustrated and even a little angry.
Somepony in Ponyville had left a dog in Fluttershy's care, while they were away from home. Unfortunately, the bitch in question had gone to heat while there.
Fluttershy was almost mad for how much she had teased Rex. The poor boy thought he'd found true love, but Fluttershy stood between them. Fluttershy tried to explain, she was somepony else's pet, that somepony might not have wanted their pet to have puppies, and once they came back from their vacation, Rex might not see her again. But Rex wouldn't listen.
Two weeks later, her owners came to take her back home. Rex was depressed and still frustrated. He started humping furniture, partly due to his frustration, partly to get back at Fluttershy.
She had a solution. But she didn't want to go that far. She loved her animals, but there were just some lines she shouldn’t cross. So she looked to every book she had on animals, she went to Twilight for more books, she even braved the Everfree Forest to ask Zecora for help, but to no avail.
So maybe, just maybe, she could cross that line, just one time…
***
“Rex?” she approached him.
The dog just turned away with a growl of disdain.
“Oh Rex,” she said, scratching behind his ear. “I'm sorry I hurt your feelings, but I did what was best, you know that.”
Rex just stared at the floor.
“You know she would have just gone away anyway, and then you'd be even sadder. But everything's okay, I'm still here. And I'm going to make it all better. You just have to trust me. Do you trust me?”
He looked at Fluttershy. She had such kind and beautiful eyes. She was kind, and Rex couldn't really hate her. He trusted her.
“I need you to lie down on your back, okay Rex?”
He hesitated only a second before falling on his back. He was familiar with the position from all the belly rubs he'd gotten from her.
Fluttershy gulped sharply as her eyes zeroed in on her target. His bulging sheath and surprisingly large balls. It wasn't the first time she'd seen it, of course she'd washed him before, she'd given him belly rubs. She'd seen it even more explicitly in the past weeks when Rex had humped her furniture.
And, to her shame, it wasn't the first time she'd thought of it.
She gently pushed the frog of her hoof to the bottom of the sheath. Rex looked up with surprise.
“It's okay,” Fluttershy whispered. “You're good boy, you deserve this.”
She pushed a little harder, and an inch of red flesh spilled out of the sheath. Fluttershy licked her lips unconsciously. She took a long sniff and a musky, earthy scent filled her lungs. She wondered if stallions smelled this naughty, and doubled her efforts, grinding her hoof softly against his groin.
Rex whimpered at the pleasurable feeling.
Fluttershy had never had a special somepony, and she had definitely never done something like this before. She was just too shy. The only reason she could do this now was because she was doing it for the sake of her animal friend, and the only fear she had was that she'd be too clumsy.
Rex didn't seem to think her first time to be clumsy. Half of his tool was soon exposed and Fluttershy had to do something more. Hooves were clumsy and tough, she needed something softer.
Gently, excitedly and shamefully, she nuzzled her face against it. It was warm, almost hot, and a little wet. She started by rubbing her face on it, before opening her mouth and carefully tasting it with the tip of her tongue.
It tasted… dirty. Not like garbage dirty, more like… sexy dirty. It felt so wrong. She smacked her lips, trying the salty taste, and she found it good.
She went in for another taste, and gave a long slow lick from the tip of the cock all the way to the sheath. Then she changed direction of her lick, moving around the cock, enticing more of it to come out and play.
She went even further down, nuzzling his furry balls gently, and even giving one of them a quick taste. She moved back to the sheath, licking her way back up the cock, now feeling over several veins that were not there before.
By the time she pulled her tongue over his urethra, and laid a loving kiss on the tip, the canine cock was already fully exposed.
She still wanted to think she was only helping her animal friend in need, but couldn't help but feel more than a little pleasure from the situation. Soon enough, the tip of the rocket was inside her muzzle. Rex whimpered, and a small amount of hot pre squirted into her mouth. She instinctively swallowed it and immediately regretted it. She wanted to savour the delicious taste more.
She pushed it deeper inside her, hoping to entice more of the tangy treat out of her canine lover. She wasn't too far gone to be careful though. She realized she didn't want to take the whole shaft in to her mouth. The base of the shaft had already started swelling, and she'd seen how large it could grow. She might not be able to take it out if she put it in.
Before she could take the base in her muzzle, she pulled back to the very tip, and gave it a loud, powerful slurp. Rex whimpered, and Fluttershy giggled into his meat as she tasted his sweet pre again. She went back down, until the shaft started to thicken exponentially, and pulled back to the tip, slurping on it, and going back down, finding herself a rhythm.
While bobbing her head up and down, her right hoof found it's way to his large balls, and started massaging them softly. Rex barked appreciatively at the feeling.
Soon enough, Fluttershy's muzzle started bumping against the swelling knot. He was close. She pushed on the tightening balls a little harder, and, with a wild howl, he blew.
Two spurts made their way inside her mouth and she almost choked, unable to swallow fast enough, and pulled out quickly. Three more spurts covered her face in the sticky substance.
Fluttershy's face was red as a tomato, under the white mask of cum. It burned her face, she didn't know how to feel about it. She panted, and a single long strand of cum dripped down from her tongue.
Rex recovered quickly recovered from his afterglow. He jumped up and licked Fluttershy's confused face happily, only to immediately cough at the taste of his own semen. Fluttershy giggled.
“Good boy”, she laughed. “But you have to understand Rex, that this was just one time, okay?”
Rex nuzzled Fluttershy's neck, signalling that he understood, before walking away for a nap.
As soon as he was out of sight, Fluttershy wiped the thick cum off her face and licked it off. She looked to the soaked floor between her back legs. Just one time…
Fluttershy felt her cheek rubbing against the cold floor, her uncomfortably rigid wings being pushed down, the saliva dripping in to her hair. The panting of a large animal above her, the powerful paws pushing down on her neck, the filling warm sensation inside her. The large tapered cock scraping against her vaginal walls as it moved in an out in a furious rhythm.
She squealed as the animal pounded inside her, the suddenly expanding knot stretching her even further. She screamed as spurt after spurt of virile thick seed exploded inside her. Her legs trembled as she orgasmed at the thought of spending the next minutes tied to an animal...
Fluttershy woke up from yet another wet dream. She sighed sadly as she had to change her soaked bedsheets in the middle of the night for what felt like the dozenth time that week.
She passed Angel's new basket bed on her way out. The bunny normally slept in Fluttershy's bed, but had refused to do so ever since she started having trouble wetting the bed in her marejuices. Fluttershy didn't exactly object of course, it might have been better for him to sleep in his own bed, at least until she could get the mess sorted out.
She sneaked out the back door and dumped the bed sheets in to the dirty laundry basket. Last nights sheets were still there at the bottom. Fluttershy was tired of having to wash them literally every day.
She was just about to head back inside to put down new sheets and maybe even get some sleep before morning, when her eyes locked on to the kennel in her backyard. She walked past the open door to the smaller building and peeked in to see the only current resident.
Rex was curled sound asleep on the warm blanket near the back of the room. Guilty memories of what Fluttershy had done with him last week surfaced in her mind.
She had to but close her eyes and she could float back to that moment. To see the large member again, to smell it, to taste it again. To feel the hot cum covering her face. Fluttershy's hind legs ground together unconsciously as a heat woke between them.
She only had to wake him. Surely he wouldn't object to some more “help” from her. Turning the dream she'd had every night into reality was the simplest of things. All she had to do was nudge the sleeping beast inside the kennel and make the proposition.
She quickly shook the thought from her head. No, she couldn't do it. She shouldn't do it.
Fluttershy turned away before the images from her dream would have a chance to come back. She stepped directly in to a puddle of musky marejuices. She hoped against hope that Rex wouldn't be able to smell it once morning came.
She stopped by the laundry basket to quickly wipe her backside dry to the already dirty linens, before quietly trotting back to her bedroom. She changed in new sheets and laid down, hoping to get at least some sleep before her usual early rise.
Soon enough, she fell back in to haze of erotic dreams.
***
The morning came quicker than hoped for. Fluttershy woke, dumped yet another set of soaked linens in to the laundry basket, prepared breakfast for the critters about to wake up, and dinner for her nocturnal friends ready to come back home to get some sleep.
Then she went through the house waking all her animal friends. She started with Angel bunny, but only because he always took so much time to get up that all her other friends were already starting breakfast. Perhaps subconsciously, she left Rex last. More than any other morning, she had to fight against herself from going too far.
She couldn't help but notice him curiously sniffing the ground in front of the kennel before excitedly joining her for breakfast.
After breakfast Fluttershy could be found on the riverbank, going through the overfilled laundry basket with her, just a little too curious, otter friends.
In the afternoon, Rarity stopped by for tea.
“Oh, it's too bad we couldn't meet at the spa as usual, darling,” the sophisticated pony sighed. “Forgive me for saying this, but you look like you could really use some rest and relaxation.”
“Oh, it's okay Rarity,” Fluttershy replied. “I know I must look terrible. I haven't had enough sleep recently. Hopefully Aloe and Lotus can reopen before our next weeks meeting.”
“Oh, I just talked to them, they assured me the renovation would be done before weekend. And we won't have to wait to next week if you feel like you need it, we can go as soon as they're open.”
“Thank you Rarity,” Fluttershy smiled, “but I'm sure I'll manage until next week.”
“If you're sure, darling.”
A short silence followed, sullied only by the sound of teacups being emptied.
“If I may ask,” Rarity broke the silence, “what has kept you up at night?”
Fluttershy froze as a quick image of Rex mounting her crossed her mind.
“I-I wouldn't like t-to talk about it,” she stuttered as she cowered behind her hair.
“Maybe I could help,” Rarity insisted. “And whatever it is, talking about it with somepony will surely help at least somewhat.”
Fluttershy let out a weak eep from behind her hair.
“Alright, dear,” Rarity sighed. “But I'll be there the moment you feel like you can talk about it.”
Fluttershy nodded and caught movement from the corner of her eye. The door had opened and Rex had walked in.
“Why hello there,” Rarity greeted him. “What's your name?”
Rex barked happily, and nuzzled against her, hoping she might scratch behind his ear. And she did.
“His name is Rex,” Fluttershy said nervously.
Why was she nervous? She didn't have any reason to be nervous. Rex was just an animal in her care, right? She had introduced her animal friends to her pony friends before. It wasn't like she was introducing her special somepony or something…
“You're a big boy, aren't you?” Rarity cooed while petting him.
'He certainly is,' Fluttershy thought to herself.
Suddenly the dog pulled away from Rarity's hoof and padded to Fluttershy, who tried her hardest not to seem too nervous by his nuzzling. As she tried to pet him, he suddenly fell to the floor, exposing his tummy as well as his slowly hardening penis.
Both Rarity and Fluttershy gasped in shock.
For a second, the yellow pegasus was certain that their friendship was ruined. Then she saw Rarity blushing in embarrassment just as much as her, and realized she could still save herself.
“N-now Rex, that's v-very s-shameless of you,” she said, hoping she sounded convincingly lecturing, rather than turned on. “Y-you shouldn’t p-p-present yourself l-like t-that.”
“Yes, Rex,” Rarity agreed. “Why that is extremely uncouth of you. Such things should be reserved for your lover.”
Fluttershy had a small panic attack inside her head at those words. Thankfully Rex seemed to get the message, as he turned over and laid on stomach.
“I'm sorry, Rarity,” Fluttershy apologized. “Rex has been like this for a while now. He doesn't have a lover, and he's young and full of life and he just doesn't know what to do.”
“I understand,” the unicorn nodded. “I assume worrying about him is what has kept you up at night?”
“Yes,” she sighed. “Oh, I've tried just about everything.”
Fluttershy had never wanted to change subject so much, but couldn't think of a way to do so tactfully.
“I'm afraid I'm no help in such things,” Rarity admitted. “You know how I just leave Opal in your care whenever her heat comes.”
“I know, Rarity. Oh, I almost hope a nice girl dog would come to my care. Maybe then I wouldn't have to worry about him so much.”
“I'm sure everything will turn out alright in the end,” Rarity assured.
***
“Rex, I told you it was just one time.”
Rarity had finished her tea some time after the embarrassing incident and left back to her boutique. As soon as she had disappeared from sight, Fluttershy had taken Rex in for a stern talking-to.
“And it was very rude of you to present yourself like that in front of Rarity in any case.”
Rex whimpered sadly in response. Fluttershy reminded herself that she had to remain stern.
“You can't do that, Rex. WE can't do that. Do you understand? No matter how much we want to.”
She froze suddenly.
“I mean, you,” she stuttered. “No matter how much you want to...”
She dropped her head in thought and walked away. She stopped next to the chair she had sat on not five minutes ago, and noticed the small puddle of her lovejuices. She was certain Rarity must have noticed it as well.
***
As the days moved on, Rex built up more sexual frustration. Eventually he started to hump furniture again, and Fluttershy couldn't find it in her heart to scold him for it.
Fluttershy got worse as well. She replaced her sheets with a towel, and even considered wearing a diaper to bed. Unfortunately she didn't have the courage to buy such things, too afraid she'd be asked too many questions.
One day, Fluttershy wanted to simply enjoy a cup of relaxing tea, when Rex started having sex with her couch again. She tried not to care, but could feel the wetness spreading under her flanks.
After a few minutes, she could see his knot expanding before his seed exploded over her sofa cushion.
Fluttershy watched nervously as Rex walked out the door, presumably to take a nap in the kennel.
She gently set her cup on the table and walked over to the abused couch. The strong scent of animalistic sex was still in the air. She inhaled deeply and felt her soaked sex wink at the thoughts that ran through her head.
The cushion was covered in long ropes of sticky cum, and had to be cleaned sooner rather than later. She bent down and gave a long lick across the cushion, gathering as much cum as she could in her mouth. She would need to mop the floor as well.
In the night she woke up from yet another dream filled with beastly sex. Her bed was once more soaked in musky wetness, yet she was somehow still feeling horny. Her hooves fell on her winking marehood as she fell into her fantasies.
She ground her left hoof into her vaginal opening and mashed her right one over her clitoris. Wet noises and the sounds of her gasps and moans soon filled the room. She noticed Angel leaving the room in search of a peaceful sleeping place, but she hardly cared.
She whined desperately. Her hooves were not enough. She needed something inside her.
Quick as a flash, she was at her cupboards, where she procured a large dildo. It was equine in nature rather than canine, but perhaps it was better that way.
She quickly laid back down on the bed over her rigid wings with her hind hooves pushing her hips up. She pushed the flat head of the rubber phallus against her quivering vulva and in one fast stroke, she pushed it inside her, all the way to the medial ring.
A shaky squeal resonated through the house. Downstairs, a tired bunny debated whether to go sleep outside.
The pegasus weakly pulled the fake cock out of her and forced it back in even deeper. Her hips bucked against the penetration, making her lose her footing. The cock slipped out of her as she laid on the bed panting.
She quickly recovered, pushing herself on her hooves. She grabbed the wet dildo with her mouth and pushed the base of it against her beds headboard. The powerful suction cup grabbed the wood harshly, leaving the rigid cock hanging in the air.
She backed in to the head of the penis, and laid her head down on the wet bed, reaching back with her hooves. It was hard to guide the dildo to her opening with trembling hooves, but she managed it.
She slammed her flanks backwards and howled as her eyes rolled up at the feeling of being filled again. The medial ring of the toy stretched her inside walls wonderfully. She moved forward, pulling the toy out of her until only the tip remained inside, before slamming back.
She went even deeper, the ring grazing over her g-spot, in a way that nearly made her climax. If only it was warm, if only it was real. If only it was him.
Her legs shivered, threatening to drop her before she could find satisfaction. Slowly she pulled her trembling body forward, until only the slightly flared head of her unfortunately silent companion stayed inside her.
Once more she flung her rump backwards. Once more the medial ring slid over her pleasure button. Once more her cry of ecstasy echoed through the house, followed by a wet slap of her flanks against the wood.
She reached climax as all the rubber penis had to offer filled all she had to fill. A torrent of cloudy marecum exploded around the phallus, soaking the headboard. And the only thought in her mind at that moment was; I want it to be him.
The cock slipped out of her with a loud shlick as she fell on the bed, legs sprawled. She panted hard for several minutes, trying her hardest to enjoy the afterglow. Before long, she pulled her tongue back in to her mouth, pushing herself up on shivering legs.
It was not enough.
“Rex?”
The dog woke to the timid voice of his caretaker. The shy equine stood trembling in the door to the kennel, drooling, her face red, wings fluttering and tail twitching.
Fluttershy was a mess. She knew that much. Her hair was disheveled, her fur matted with sweat and marecum, her eyes glazed, her legs trembling. She smelled like sex, and nothing else. But her lover didn't care how messy she looked like.
Rex nuzzled gently against her shivering form. The touch was meant to be comforting. It was meant to tell her that everything was okay. Her needy marehood quivered at the close proximity of an able mate.
The horny pegasus mashed her muzzle against his, hoping the animal to understand and return the show of affection. While he did understand, instead of kissing he licked across Fluttershy's muzzle, then her face, then her neck.
The poor mare winked at the feeling, and a small spurt of her juices squirted on the floor. She couldn't wait anymore. She turned away and let her upper body fall to the floor as she pushed her rump in the air.
“Please, Rex,” she whimpered. “Take me.”
Instead of mounting her however, the canine instead pushed his nose in to her drenched sex, making her gasp. His wet button nose felt almost cold against her burning cunt. She felt him sniffing her backside, filling his lungs with the scent of a female ready to mate.
A broken moan echoed in the night as his large tongue dragged over her sensitive clitoris. Her head fell on the floor, her cheek soon soaked in her own drool. Just the thought of mating with the animal was enough to make Fluttershy a broken mess, and now his tongue was inside her. It didn't take much longer for her to reach her first climax with him.
Her eyes rolled up as a strangled cry broke from her mouth, and Rex was soon covered in her orgasm. He quickly retreated, as her entire body quivered from satisfaction. Her legs trembled, and the only thing keeping her hind in air was the instinct of a female in need. She would not be satisfied until she had felt him inside her.
Rex shook his head wildly, sending drops of marecum flying to the floor and the walls. Fluttershy was left panting in exhaustion. Despite the fact that her marehood still screamed for gratification, she did enjoy the small breather, before the powerful male ruts her to the ground.
And then she felt his weight above her. The thick fur of his stomach on her back, his paws pushing her shoulders down, his hot breath on the side of her face. And on top of it all, she felt his rigid shaft press between her buttocks, and the hot pre staining her fur.
She gasped as he humped, pressing the tapered head against her perineum. He lined his shot again, and missed, pressing against her furiously winking clitoris. Fluttershy bit her lip and groaned as the animal ground his pecker against her sensitive button.
He tried a third time, missing by less than an inch, making her whine. She needed it now.
With a little effort, she managed to move her forelegs under her stomach. A gentle hoof guided the throbbing cock slightly to the side, and Rex slammed his hips forward eagerly.
Fluttershy's mouth opened in a silent scream, her eyes bulged and her pupils shrank into pinpricks, as the entirety of the impressively sized cock speared her tender insides. A bouquet of feelings exploded inside both her body and her mind. She bit her lip, almost painfully, her eyes crossed and a loud whimper echoed in the night as she came again.
Rex had the courtesy to stay put as his caretakers insides pulsed around him. Fluttershy rode the high of her orgasm for a while, spraying more of her marejuices on her lover and the floor below them.
When the haze around her mind finally calmed, she could focus on the feelings. The girth stretching her insides and the head putting pressure on her depths she was already familiar with from her toying, even if the shape was different. But the heat, the throbbing, the feeling of his loins against her rear and his balls resting on her clit.
The feeling of a living lover. She sighed happily at the feeling.
A soft whimper from her side brought her back. She looked to the left and locked eyes with Rex. He was questioning her with his look, asking if he could continue. Her mouth turned in to a wavering smile, touched by his gentleness.
“Rut me.”
Rex woofed and complied.
She felt his hips pulling back, his burning length retreating out of her, until only the tip stayed inside. She knew it had to happen, but couldn't help her insides instinctually grabbing onto him, reluctant to let him leave.
And then he slammed back in, making her squeal as all the feelings from before came back tenfold like a lightning strike. She was sore, from her earlier session as well as the multiple orgasms, but the pleasure overwhelmed the numbness and the pain.
As he pulled out again, she felt her insides squeezing him even more than before, desperate to keep the pleasure giving rod inside. Once again, he stopped when just his tip was inside, before throwing his hips forward again. Fluttershy's mind exploded in yet another fireworks display of pleasure as she felt his slowly swelling knot pushing against her g-spot.
It took one more full thrust before Rex sped his rhythm, only pulling out halfway. Enough for the half swollen knot to pop out with a wet sound, before forcing it back in, making her heart flutter at the feeling. With every thrust his knot rubbed her pleasure button, and his balls slapped against her winking clit.
As his thrusts became faster and more bestial, she was able to think less and less. Her mind was too gone to appreciate the feelings, instead she surrendered to the pleasure that slowly but surely pushed her closer to climax.
And then came the moment he had to pump hard against her rear to force the swollen knot inside. And it was not coming back out. Fluttershy made sure of that, moaning and groaning as her insides squeezed him like a vice.
Despite this, Rex kept up a rhythm, humping her as much as possible. The knot kept grinding against her sensitive g-spot, and the pre-cum drooling head kept bumping against the depths of her marehood.
Rex snarled at the feeling of her insides milking his shaft, and then finally he came. Fluttershy felt the great throb of his length, before spurt after spurt of thick virile cum flooded her insides.
The pressure of the knot inside her, as well as the hot flood of seed, brought her to her peak yet again. She screamed as she had the fullest, most perfect orgasm of her life. Rex howled as her spasming insides stroked his sensitive shaft.
With the end of her climax, all strength left Fluttershy, and her body fell limp. She was surprised when she didn't fall to the floor though, instead there was a strange pulling sensation in her pussy. Rex was in no way unsettled by her weight, holding her hind up with his knot.
He tried to move to his sleeping spot, but stopped immediately when the pony cried out to him.
“I'm sorry, Rex,” she sighed. “Please don't move yet. Wait until I can get off.”
It took several minutes before the knot had subsided enough for the exhausted pegasus to fall to the floor. As her stomach made contact with the wood floor, a viscous mixture of their cum squirted out of her.
She should have gotten up and made her way back to the house and to bed. Instead she curled in to a ball, and closed her eyes. She was far too exhausted to move.
Rex was about to make his way to his favourite spot, but when he noticed his caretaker going to sleep, seemed to change his mind. Instead he made his way to her side and laid down next to her. She gave a content sigh at the warmth next to her.
