The sound of a hoof gently rapping at her front door is the single scariest thing Fluttershy can imagine right now. She knows exactly who it is - there’s only one pony that could be here that would knock that softly.

And how could she forget? She had plans today. She had made plans for today about five weeks ago, and had been excitedly preparing for them - until this morning, when she couldn’t remember anything but the description on the pill bottle she had forgotten to read.

” - May cause hormone imbalances leading to moodyness, irritation, upset stomach, or, in severe cases, early heat cycles - “

Fluttershy glances over at the offending pills, staring with pleading eyes as if she could will them away, will herself back into her blissful sleep last night, a full and happy day ahead of her. She’d much rather keep her migraines than deal with this, her worst case scenario unfolding before her.

Rap, Rap, Tap
Goes the hoof on the door, one more time. Fluttershy squeaks, unable to stay silent, and presses further back into her bed, burying herself in her blankets. She hopes that their thickness will conceal her scent, her body still beneath them besides the quivering of her feathers and flank.

She hears the slow creaking of the door, and she stills even that.

“Fluttershy? Sweetie? Are you home? We where going to go watch the Appaloosa spring migration!” Mr. Shy half-yells, about as loud as one can expect from him - which isn’t very much of course, but it sounds like booming thunder in Fluttershy’s ears.

Fluttershy does her best to will him out of existence as well, focusing hard on staying quiet and pretending she isn’t here. It feels childish - but what else is there to do? She takes shallow, silent breaths and tries her best not to scream

“Is somecreature in here sick?” Mr. Shy calls again, closed now, inside her dining room. “Something smells…strange.” His voice comes, from the middle of the stairs.

Fluttershy does her best not to whimper, she really does. But her tummy rolls and rumbles inside her abdomen and her marehood winks each time she’s ears her voice.

“Shy? Is that you?” His voice calls from the doorway, the movie of the hinges creaking coming shortly after. His voice is a little deeper, a little more raw.

Fluttershy isn’t sure if her hormones will affect him the way they do other stallions. He seems so gentle, and soft. And they’re related! Surely, he won’t…

“Dear Celestia, you smell edible, Shy…” his voice comes, just outside her measly wall of blankets, dripping want and shaking with desire.

Fluttershy can’t take it anymore. She screams, at the top of her lungs, and she bolts out from under her covers. The blankets stick around her ankles, tripping her out of bed, but the startled look on his face gives her time to right herself and start to rush off again. For just a moment, she moves with so much speed she could easily beat both Applejack and Rainbow Dash at any race -

Then a thick and heavy weight slams into her side, her hooves getting caught in the blanket she was running over. She careens, flaring her wings to try to hold her balance, and slams into her open bedroom door. Her left side flares up with pain as her wing struggles to pull itself against her side, and her vision reels with stars.

Quickly, she’s struggling onto her hooves and rushing for the door - but her father recovers just a little bit quicker. His forehooves meet her shoulders with little grace but plenty of testosterone fueled strength, forcing her front legs to give out. Her wings flare as she’s forced down, and she cries out in pain - it doesn’t stop him, though.

“Oh, Shy, you smell so good…” He growls more than he says, snorting hot air across her enflamed privates. She whimpers, tears rolling down her cheeks, and winks despite herself. “You don’t know what you do to me, Shy.” He says, nose pressed against her now, huffing deeply.

“Daddy, please, don’t…” Fluttershy whimpers, quietly, then cries out as she feels his teeth dig into her flank, just behind her cutie mark.

“You want this! Don’t tell me no!” He half yells, half growls, the loudest and angriest she’s ever heard him in her life. She shrinks further down, raising her tail a little in deep-buried instinct. The smell of his rut is starting to permeate the room, a heady musk that makes her dizzy and wet. “You planned this, didn’t you? You wanted daddy to come help you through your heat, you just needed an excuse to get me here. You did a good job Fluttershy, now Daddy’s going to make it all better…” he trails off, ignoring her whispered pleas to stop, and pressed his tongue against her clit as it winks out of her. She gasps and tries to pull away, but her father’s hooves around her thighs hold her back. He digs them into her skin, and she isn’t sure if it’s because the rut has made him stronger or if this is just how he is in bed. She doesn’t want to know, however.

He licks her sloppily, tasting her more than trying to please her - if she wasn’t in heat, it probably would have hurt considerably. At the moment it just makes her squirm, partially out of discomfort but mostly out of sensation, out of unwanted want and need. “Damn heat, you must’ve known…known the things it does to you, to us….the things it makes good stallions do…” Mr. Shy rambles on as he breathes in more of her scent, holding her tail straight up until her body begins to simply keep it there, holding it up against her will.

Fluttershy is frozen with fear and indecision. She’s terrified of what will happen - is happening - if she continues to stay still, but even more so, she fears the violence Rut might cause her father to do. If she tries to run, he might tackle her on the stairs…

Fluttershy knows she can’t fly while deep in heat like this, especially not after having hit her wing. Can her father fly while in rut? Will he break something, falling down the stairs? What if she kicks him, would that hurt him more than superficially?

Would he hurt her?

She’s snapped out of her panicked train of thought when she feels his weight settle on her back. “No! Please, daddy, please don’t!” Fluttershy yells, trying to take a step forward. The weight forces her down, and her front legs collapse, forcing her front end to the floor again for the second time this morning. Her cheek hits the ground hard, and while her vision swims, she feels his hooves step onto her shoulders.

“Still!” He groans, sounding less like a pony than before, the full throes of his Rut settling into him. He body wants to fuck something - and there’s nothing Shy can do to stop it.

The utter carelessness of it, being stepped on like a rug, being treated like some kind of perverted toy, hits Fluttershy like a train. She begins to sob, loudly crying out over and over again. “No daddy please daddy I don’t want it I don’t want to be pregnant I don’t want this please daddy please don’t, please please please pl-“

She’s cut off by her own shout as he hilts in her on one quick, hard thrust. He bends down and bites her hard on the neck as he does, hard enough to draw blood - not that he notices. “God, you feel so good, your so welcome baby, Daddy’s gonna make the sick go away, fill you up with your own little one, I know you’ve always wanted…” he says, not even hearing her cries.

He fucks her hard and fast and brutal huffing and snorting and drooling down her neck. She shakes and cries and weakly tries to push him ofc with her wings, but his weight is too much for her. She can barely hold it up with her hind legs, much less move even a little.

“Fuck, Shy…” he growls, burying his muzzle in her mane as he buries his cock in her hole. His thrusts become more forceful as his tip begins to flare, pressing hard into all the most sensitive places inside of her. Even as she sobs, small jets squirt out of her with every deep thrust, the pleasure as much an assault as the pain.

She doesn’t cum - far to terrified and tense - but she feels like she’s riding the edge of it the whole time, especially as he thrusts as deep as he can go and holds there, quivering against her hindquarters and he sprays seed against her womb. He groans, twitching hard against her upper wall, cum and slick leaking out of her and down both of their thighs.

He stays pressed against her, hooves digging into her spine and shoulders, hip muscles quivering with effort. She struggles to notice what is going on, brain clouded with hormones and fear and pleasure and pain. She does notice, however, when he starts to thrust again - slowly at first, then faster, then quickly back to as rough as he can. She lies there and takes it, feeling everything and nothing all at once, listing to him grunt and growl, knowing he’s beyond speech now - too far gone into hormones and instincts.

It feels good, and she can’t deny it, her body getting what it craves desperately. She presses her eyes closed tightly, the muscles in her thighs and stomach clenching up as much as they can. It tightens her around his cock, making him thrust even faster. It feels amazing, and she tries to focus on that instead of the pain in her head and the desperate pounding in her heart.

It only works a little, but a little is enough to relax her just enough to cum, shaking and clenching hard on his cock as she squirts around him, forcing cum out onto his balls and up onto her asshole. He groans loudly and begins to flare again, pressing deep into her once more as he tries his best to impregnate her.

He pulls out this time, still flared, and ignores her whimpers as he does so. His forehooves press her onto the ground before they hit the floor themselves, and she rolls onto her side and curls up into as tight a ball as she can. There’s no tears left, so she stares at the wall, trying not to focus on the feeling of her fathers cum leaking out of her with each wink of her sensitive, raw pussy.

He backs up a few steps and climbs into her bed, still beyond the concept of rational thought, and falls asleep near instantly.

Fluttershy doesn’t notice, though.

Author's Note

Quick little thing to help my writers block. Sometimes you just have to write your favoritist kinks :)

Lemme know if anyone has any interest in an Aftermath chapter.