Mike gave the crystal a command. Yoshua got a little shorter, grew breasts, his face got softer--all the standard changes that went with changing into a girl.
Mike admired his work. "You do make a cute girl," he said. He held the crystal and said "Your name's Josie now."
"You, Josie," he said to the transformed Yoshua, "you will be my girlfriend now. You're in love with me, you want to be a girl for my sake, and you won't have sex with anyone else. Aside from that, you'll think and act just like you did as Yoshua, and you'll remember everything. Since these are male only dorms, you'll be living in the girls' dorms."
"You, Pops," he said to Conor, "and you, Dad," he said to Marcus, "will want to stay as you are right now. You will remember everything too--I'm not really changing your memories but your mind. You two will realize that since you have a son you both need to be good fathers for me. At first you'll think of each other as you do now, except that Pops wants to keep his pussy, but in a few weeks you will fall in love and begin dating, and maybe someday you'll give me a brother or sister. You won't mind that I'm seeing Josie either."
"Finally," said Mike, "Pops, you'll be back living where you were living before at this age, which is just a few seconds ago in this world's time anyway. Dad, you're still in room 111, but since Josie is in the girls' dorms, I'll be your roommate instead."
Josie's things vanished from the room to be replaced by Mike's.
Them Mike gave the crystal another command, and everyone unfroze.
"Mike?" said Marcus. "You've grown to be such a good teenager. I'm proud I'm your father. Now that Josie's a girl I'm glad it's you who's seeing her."
Conor said "Damn you for getting me pregnant." Then he added "Mike, it's not your fault. You're my son and we're your parents, even if we can't stand being around each other."
That will change in a few weeks, though Mike. "What about your pussy?" he asked.
"It's okay," said Conor. "Now that I'm back to this age it sort of fits, right?"
Mike nodded.
"So tell me what it was like being Dad's roommate," said Mike to Josie. Josie began explaining and then kissed Mike.
"You know," said Josie, "If we weren't dating I'd change back to a guy in an instant, but I so want to be your girlfriend. I'd never stay a girl for any other reason." Then she turned to Marcus and, just like Yoshua would, said "Hell, Marcus, I'm gonna miss you! We're pals and I'll visit, but you really oughta come to class sometimes, ya know?"
Mike smiled.