You shivered and gasped as Mina withdrew his penis from your soft tunnel. The feeling of your lips clamping shut as he left made your eyes go wide. This body was definitely full of surprises!
"Well, that was neat but I guess it's over," you said as you looked toward the teacher and his strange device. All of the students in the room were doing this same thing - gently prodding their new forms for the last time, waiting for the teacher to change them back. The former boys were mostly caressing their breasts. (One brave individual was slowly entering her vagina with an extended finger, eyes wide the entire time.) The former girls were all pushing their soft cocks back and forth, watching as they flopped around and giggling at the sensations.
But the teacher's next words surprised them all. "I trust you've learned your lesson," he said. "And I will see you all back here on Monday once the machine has had time to recharge."
A series of cries rose up from the gender-swapped audience. The teacher smiled "I understand you may not want to spend the weekend as the opposite gender, but that's the consequences for not succeeding in class." He gestured to the hallway where the rest of the class that left earlier was walking down the hallways. "Your classmates out there are going to have a perfectly normal weekend because they remembered to use a condom. Fair is fair." And with that, he took the device and went back to his office. "I suggest you all swap clothes!" he called over his shoulder as he closed his door.
You looked over a Mina's blouse, bra, and skirt. It was all entirely too girly for your tastes, but you realized your old clothes wouldn't fit you now. In fact, Mina was already halfway dressed in your jeans and t-shirt!
"Great fit" he said. "Here, take my bra first" he said to you as he picked it up and extended it to you. You froze, staring at it. After a moment Mina sighed and offered to help. "Here, let me show you."
It turned out you were not alone. You saw most of the gym's boys helping their former-male classmates restrain their hanging mammies. You basically let Mina dress you. You sharply inhaled as he pulled your panties tight against you. You had expected pain from the maneuver until you realized you didn't have balls anymore. You looked down at the smooth panties on your crotch. There really wasn't anything there to dangle around and be hurt anymore. You frowned as you stared at yourself.
You were finally dressed and left the gym in a daze. You could tell everyone else in the hallway was staring at you. Word of the gender-swap spread quickly and everyone soon knew that the strangers in school were actually unidentified classmates. Several boys cat-called you on the way to your locker.
"Hey, what's your name?" one asked. "Were you Jerry? Or Todd? Who were you, baby? I don't care as long as you let me touch those boobies!" You crossed your arm over your chest and hurried past them.
You finally arrived at your locker and saw a shadow approaching. Someone was right behind you. You spun around, afraid the boys had followed you, but it was just Mina. You were face to face with his chest and had to look up to meet his eyes. "You sure are tall," you squeaked.
"Yeah it's weird," said Mina. "This whole body is weird. I can't believe how much..." he leaned in closer to you and whispered "...this body wants sex now! I can't get it out of my head!"
"Yeah... it'll do that." you said. Your body was inadvertently absorbing Mina's new male pheromones and they were heavenly. You felt your pussy start to moisten Mina's panties between your own legs. Your eyes got wide and your breathing slowed.
"I know that look" said Mina. "You're getting turned on 'cause I'm so much bigger than you." Mina stepped forward and pushed me back into the locker. His hips were pressed against mine and I could feel his cock harden between us. "Mmmm, he said. That feels really great. I only liked boys before but now that I have a cock it seems that women are all I want." He looked down at my body and locked his eyes on my cleavage. "I think you should come to my house tomorrow and suck my dick."
He looked back at my face and leaned an arm against the locker, next to my head. I somehow felt closer to Mina than I did when we were fucking 10 minutes ago. "Ummm..." I said.
Mina continued. "I know you want to. I remember what being a girl was like. We pretended we didn't like it but I remember wanting to. I remember wanting to REAL bad. And now you want to, don't you?"
You nodded. "That's a good girl," Mina continued. "I've already got Steve, I mean Stephanie, to say she's coming over. I want you to join us."
"A three way?" you ask.
"Yes, grinned Mina." I'm only going to have this dick for 3 days so I want to get as much use out of it that I can. And I've correctly guessed that all your boys-turned-girls are horny as hell. So come to my house tomorrow and in return I'll show you just how good that little love tunnel of yours can make you feel."
"And... Stephanie?" is all you manage to say.
"Yeah, he picked a girl-name really easily. I suggest you do the same too. I wanna call out something feminine when I cum all over your tits." He laughed again and walked away. You saw his hand very blatantly brushing against his own cock as he walked. He couldn't keep his hands off himself! Mina sure had turned out to be a horndog.
You squeezed your own thighs together and felt your underwear squish slightly. You hated to admit it, but you were just as horny as Mina was. And he was right, wish was a once-in-a-lifetime opportunity to have sex in a totally unique way.