He waddled in a panic over to his own bedroom, feeling the heavy breasts and fat thighs jiggle and rub against each other under his clothes.
There, in his bed, was... himself!
"Mariah?" asked the imposter in his body. His voice sounded different, more nasally, as he heard it come from this person. "Were you yelling just now?"
"I'm not Mariah, I'm David! Who the hell are you? What's going on?" he whined in Mariah's voice.
"Oh, god, not this again." The fake David (really Mariah in his body, but he didn't remember that) stood up and walked over to him, towering over the body David was stuck in. "It's been a month, you need to accept that this is the way our lives will be from now on. I know it's an adjustment period, but it's really for the best."
"Wait... Mariah?! That's you in there? You know about this?"
"Wait, did you get hit in the head or something? You really don't remember about the swap? The experiment?"
"What experiment? What do you mean 'from now on'?" He was starting to cry against his own will.
"Look, we had to swap bodies as part of an experiment. They put you in my body and me in yours. They collected some kind of data. They told us it can never be reversed. We just have to live our lives now - You as Mariah, me as David. Why can't you remember?"
"I don't know! Wait, you said I've been like this for a month?"
"That's right, a month."
"So I've been..." He looked down as his body, at the huge unwanted breasts and belly filling up his shirt. "We've been looking at each other's naked bodies?"
"Yep, it was weird at first, but we got used to it. They're just bodies, after all. Although I have to say having balls is pretty weird. Way less annoying than boobs, though." The teenage boy chuckled.
"Balls... Oh, my god, my dick is gone... I don't have a dick... I'll never have one ever again!" He sobbed.
"Hey, eat some ice cream, that'll make you feel less upset. You get emotional sometimes as a girl, that's all. And take a nice hot shower."
"Shower in your body? Oh, god, that's disgusting, why would they do this to us? Why would I ever agree to this?"
"To be honest, I'm not sure. I don't think I would've if I were in your shoes. And, heh, now that I am in your shoes, I can guarantee I would never agree to be put back in that body even if the opportunity came up. Anyway, it doesn't matter, they really insisted there's no way to change us back, the attempt would kill both of us."
David pondered whether that would really be such a bad outcome.