Fucking toward femininity

One day, while browsing the internet, Mike happened to visit a message board discussing the Martian cockrings. He couldn't believe what he was seeing. Some had already gone through complete gender transformations and become lusty females trying to convince the remaining men to get bitched, while others posted about how they'd tried and failed to remove the cockrings and how they're scared there's no stopping the transformation. The fear in the posts finally breaks through his horny thoughts and he looks down at his own chest where even now his hand fondles an A-cup breast. He knows what's happening, but he doesn't know if they can stop it or if they want to.

Being the first to put on a cockring, Chad continues to change the most. His hips widen, his ass becomes rounder, and his voice grows higher. Meanwhile, Trixie's new tits continue to grow bigger, fuller, and perkier. Mike and Vanessa's bodies also morph into something more feminine and delicate. They find themselves being turned on by their own changes and the thought of potentially becoming one of those lusty females online.

Chad tries not to think about the darker side of the transformation but finds it harder and harder to resist when Trixie starts talking about how good he would look with a pussy for her to play with. He knows that if he wants to avoid getting bitched, he needs to remove the cockring, but every time he tries, Trixie distracts him with more sex.

As their bodies change, so does the dynamic between them. The men become more and more submissive while the women take on a dominant role. The girls are on top and love telling the guys how good it feels to be fucked and how lucky they are to be a woman. Wouldn't they love to feel a female orgasm? Orgasms that leave them writhing instead of a little pop and done.

One day, after another mind-blowing round of sex, Chad collapses onto the bed exhausted. Trixie leans over him, her breasts swaying gently as she whispers in his ear, "You know you want this, don't you? You want to be like me, to have what I have." She trails her fingers down his chest, teasing his nipples. His breasts are as big as hers and Trixie can almost make him cum just by playing with them.

Chad closes his eyes, trying to fight the urge to give in to his desires. But as Trixie's touch becomes more insistent, he can feel himself losing control. "Yes, yes, I want it. I want to be just like you."

Trixie smiles and settles down on his cock again. "Good girl. I can't wait to share my toys with you. Gotta save your cherry for some stud though. I won't take that away from you. Oh I can't wait to see your face the first time you're split by a big cock."

She rides him harder and faster, but he doesn't feel like he's any closer to cumming. His cock actually feels kind of numb, but her hands on his tits feel better than ever. As she works herself up to an orgasm, Chad feels something strange happening. He can feel his body changing, growing more sensitive. His breasts become even fuller and perkier as they jiggle with each thrust. When Trixie finally cums, it's intense, and his cock twitches, but it doesn't shoot its load. Instead, he feels a warmth spreading through his abdomen. His hips widen further and his ass rounds out even more. His voice grows higher still as his body continues to transform.