[Futa4A] You wished upon a star for a bigger cock, but...
You didn't have the best of luck with the genetic lottery. You were already a full adult, but for some reason puberty never hit completely with you. That's why you had to go through life with a dick that could modestly be called below average. It was tiny. And all those experiences with dates that were ruined because you were laughed out of the bedroom made you very self-conscious about it. `
Even though you tried your best to keep it a secret, by now it was quite well known. Mostly because of me, your older stepsister. I truly was the bratty type. The self-centered one who can do anything she likes just because she has the looks to back it up. Because yes, it seems like your genetic misfortune has blessed me with a body that can get all the guys. And at home I have made it my mission to put you down, bully you and steal your thunder. As long as mom doesn't intervene.
But on one special night everything will change. You were lying there in your bed looking up through the window at the stars. And while you knew there was no chance, you were so desperate that you wished upon a star. You wished for a bigger cock to appear in your life such that you could finally get all the sex you wanted.
When you woke up the next morning and lifted up your sheets you were once again confronted with that toothpick of morning wood. Of course it didn't work, what were you thinking. But suddenly you heard a loud crashing sound coming from the room nextdoor, my room. Your naughty little mind couldn't help itself and so you decided to take a peek at your sister.
You stand frozen at the doorway, peeking into your sister’s room, eyes widening as you take in the impossible sight before you. The familiar figure of your sister has transformed into something beyond recognition, like a dream twisted into reality. She was always athletic, toned, and beautiful, but this… this is something else entirely.
Her once slim but fit frame is now monstrously large, like some titan pulled from the pages of a comic book. Lying there on her broken bed, she seems too big to be real, her massive form overwhelming the space. You can’t help but stare at her legs first. Her thighs, once powerful from years of sports, are now bloated with sheer muscle. Each thigh looks as thick as tree trunks bulging with muscle that twitches subtly even in sleep. The sheer size of them has forced her legs to stretch out well beyond the bed, her feet planted firmly on the floor despite the length of the mattress. Her toes curl against the floor, and her calves, like boulders, rise and fall with every unconscious movement.
Her torso, covered by a sheet, rises like a mountainous landscape. Her chest expanded enormously, broad enough to cover the bed’s entire width. Even though her chest is mostly hidden under the fabric, you can see the mass it holds. The fabric stretches across her shoulders, shoulders that seem impossibly broad now. Her biceps, resting lazily on either side of her, are thicker than your torso bursting with veins that seem like they’re ready to burst through her skin at any moment. Her hands, large and heavy, rest on the floor, fingers curled slightly, knuckles resting against the carpet.
Her neck, thick and corded with muscle, supports a face that hasn’t changed much, though you can see her jawline has become more defined, stronger, and somehow more menacing. Thick, golden hair cascades down her shoulders, adding a surreal beauty to her otherwise monstrous appearance. Her blonde locks catch the morning light, shimmering like something out of a dream, but the rest of her body is pure nightmare fuel. Most fearful of all was the giant tent that rose from her hips. It seemed to be supported by a giant pole that was longer than her thighs. The sheets around the tip were completely soaked, which made you fear the worst about what monster was hiding beneath.
You remember how she used to tease you, always calling you weak, small, never able to keep up with her, and now, seeing her like this… she could crush you without even trying. The thought makes your stomach churn. You’ve always been the smaller sibling, but now the disparity between us two is beyond measure. She’s got to be over 8 feet tall, maybe even more. Her new size and sheer muscle mass make her look like a statue come to life, a perfect blend of raw power and intimidating beauty.
Her breathing is deep and steady, but even in sleep, there’s a palpable sense of menace in the room. This was your sister and now, with this gargantuan, muscle-bound body, she could turn your life into a living hell without lifting a finger. A shiver runs down your spine as you imagine what she might do when she wakes up. Will she still enjoy toying with you the way she used to? Or will things get far, far worse?
One thing is certain: the power dynamics between you and her have shifted irreversibly. There’s no chance of standing up to her now, no way to even think about defending yourself. She was already a force to be reckoned with, but now… she’s a juggernaut, an unstoppable force of nature, and you are nothing more than an insect in her presence.
And the worst part? You know she’s going to love every second of it.
Okay so that is the setup. Your wish has gone wrong and turned your sister into a large amazonian futa with a giant cock. How will this affect your life? Maybe she uses it to go after your crush and turn her into her fuckpet? Maybe she turns your mom into her cockslave so she gets to do with you as she pleases. But one thing is for certain. She is going to turn you into her little fembro.
When reaching out, please include your kinks and limits and add the password Buff sister
Kinks: Size/Height/Power difference, Large Dicks/Breasts/Ass/Balls, muscle, Size comparison, ripping clothing, clothed sex, cross-dressing, flirting, groping, kissing, D/s, dub/non-con, domination, total power exchange, high heels, boots, leg focus, feet, pet play, displaying feats of strength, using my body to get my way, humiliation, worshiping, ego stroking, light pain, cock slapping, blowjobs, deepthroating, face sitting, smothering, lots of cum, cum diet, cumflation, condoms, growth, deep throating, anal, breastfeeding, lactation, penis/ball care
Limits: gore, vore, blood