"Linda? I thought you had to go to the drug store?" Jon turned around to the source of the voice, his father, who was smiling oddly at him. "Not that I'm not happy to see you, of course."
Jon simply stood there for a second, blinking and wondering what he looked like now, before responding in a foreign voice. "No, dad, I'm Jon. The transporter messed up and mom and I did a swap because of it. I didn't get a chance to look, though... do I have her face too?"
Jon's dad's expression softened. "Oh... oh my God... you have each other's bodies now? Oh, no..." He started to cry, staring wide-eyed at Jon. "My beautiful wife... my son..." His reaction was puzzling to Jon; a swap back was possible, wasn't it?"
"Don't we just have to swap back, dad?" He shook his head. "No. Every time something like this has happened, they've tried to fix it, but transporter accidents have always been... permanent... don't you remember that couple at your school? Buff and Susan, I think?"
Now Jon was wishing he had just gone to school. What had happened to Biff and Sarah? After a moment, the reality of it sunk in. He looked like his mom, and because of his stupid wish, neither of them could change back. "What do we do now, dad? I don't wanna be mom!"
His dad sighed, just watching him. His apparent inability to take his eyes off Jon's chest was unnerving. "I don't know, dear. But for now, just don't let on to the kids that you're not their mom. I don't think Mikey and Zoe need that right now after their own little accident." Jon was once again puzzled.
"Dear? Dad... what happened to Mikey and Zoe?" His dad looked somewhat startled. "Oh... you didn't know about that. I'm sorry. Well, their... parts got switched around when they were both late and they decided to 'carpool' in the family transporter. You... er, your mom... took pictures." Walking into their new room and to the dresser, he dug out a stack of photos, and handed them to Jon.
Jon looked through them, almost unable to believe what he was seeing. Zoe was standing straight, arms at her sides, naked and looking about ready to cry. And Jon could see why. Dangling from her now hairless crotch was a tiny penis and ballsack, too small to hold to pee. Mikey stood in the same position, and between his legs was a patch of blond fur; the hair on his head was black like his dad's and Jon's.
The rest of the photos were closeups, of Zoe holding her tiny penis and testicles in her palm, Mikey spreading his new lips apart, and pictures of Mikey sitting down on the toilet and Zoe standing up and peeing. It was perverse to look at, but he understood why it was done; to make sure all the equipment worked right.
"Remember to call Zoe 'him' and Mikey 'her'. You... your mom, that is... decided to call them that to help them get used to their new anatomy. Zoe was always due around this time, so Mikey should be starting her period soon if the age of her new parts are the same. Ask your mom if you don't know how to help." Jon just nodded, stunned by this new information. "Get dressed in whatever you like, I don't think y...anyone... is in much of a position to complain."
With that, Jon's dad left the room, leaving Jon to wonder both what to wear and how he would handle this new life.