For a moment, you try to fight them, but then the one close to your face kisses you. As she does, something in you clicks. Why the hell are you trying to fight three beautiful girls who want to fuck you? Even if they're gonna turn you into a girl, which you can't be sure of anyway, that's a small price to pay. You smile at her as she pulls away. "Still wanna fight?" she giggles.
"Nope," you grin.
"Thought you might change your mind," she replies, pulling off your shirt. Once she gets it off, another girl sits on your legs and undoes your belt, your boner poking through your pants already.
The girl kissing you soon starts kissing down your neck, and you hear a soft moan. Looking over at Johnny, you realize his hair is lengthening and he looks funny, but you're distracted when the girl at your feet pulls off your clothes and starts sucking your dick. Oh, wow, that feels amazing!
You suddenly feel an even better feeling when the girl now sitting on your stomach licks each of your nipples. Then her hands move to pinch them, rubbing at them like she's sculpting your body. You're kinda surprised when you see your chest is becoming larger, starting to form breasts, but having her play with your chest and your nipples is making you feel good. "What's your name, baby?" she asks softly.
"E-Ethan," you moan, surprised at how high-pitched your voice sounds all of a sudden.
"Can I call you Effie?" she replies sweetly.
"Yeah," you whimper, and then groan as the girl sucking your cock makes you cum, feeling like you're feeding her every drop of your cum from how empty your crotch is feeling. When she finishes sucking, your cock has begun to shrink, and you realize the empty feeling isn't coming from your balls, but... inside? You're suddenly aching to take something inside you. Her magic hand cups your scrotum, and you can feel your testicles obediently move inside your body, starting to reshape into your ovaries. She then starts reshaping the emptied sac, smoothing it into your skin until it's almost flush with your crotch, and then gently slicing its centre open, giving you a soft feminine slit. Her fingers then reach up and tweak and stroke the sensitive and still shrinking penis, forcing it to form your sensitive clit.
As they let you go, you get to your feet unsteadily, and when you look at your body, you're astonished to find they've transformed you into a girl! But to your surprise, it feels... right.