Before long David's parents got a call. "We've seen an unexpected side-effect on some patients.... An inability to retain new memories for very long. It's basically overnight amnesia. We're desperately looking for a solution, but it must be the memory center of the brain rejecting the transplanted self... Anyway, we hope it doesn't happen to your two children as it's quite a devastating condition."
"That sounds awful!"
Cut to David...
David stirred in his bed, feeling sluggish not wanting to wake up. Clearly he was up too late playing video games again. As he rolled around, he felt a bizarre constraint around him, like he was stuck in a sleeping bag. He felt strange weight and movement around him as he moved. Bizarrely, his face felt different, and his teeth were all wrong! This didn't even smell like his room, it smelled like a girl's room!
"What the fuck?" he yelled as he opened his eyes. He was in Mariah's bed! He pulled down the sheets and saw his t-shirt stuffed with two huge breasts and a flabby belly! He held up a hand and saw it was a girl's hand, with cracked nail polish! It was even a girl's voice!
He screamed as he tried to stand up. It was difficult, as his muscles were incredibly weak and feminine, and the body around him was massive, the breasts and the belly and the fat butt all conspiring to pull him down, keep him from moving easily.
He struggled to balance as he stood on his feet. Everything around him was jiggling uncontrollably and uncomfortably. And he could feel it - as though this extra weight was actually part of HIS body! "No, no, no..." he muttered, realizing this was really happening. He waddled awkwardly to the mirror, and his nightmare was confirmed. Mariah's face was staring back at him, wearing pajamas, looking as horrified as he was!
He yelped again as the realization overwhelmed him. He was IN Mariah's body! He was tasting the inside of her mouth, right now! He was looking through HER eyes, not his! He was standing on HER feet, not his! He looked down (and of course, so did Mariah in the mirror). A fat girl in her pajamas! That's what he was! How could this be happening?
Was this a dream? He pinched a cheek, and felt Mariah's hand pinching him! He turned to the left and looked himself over in the mirror. Disgusting sagging breasts and a fat ass. He touched the front of his stomach, which had always been flat and fit, like a boy's... Now, it was a fat female belly sticking out the front of him! He squished it around, trying to figure out how to "detach" it, but there was no way! It was really part of him! He was tempted to touch the other strange new body parts he now had, but he was overwhelmed with disgust at being this close to his sister's body.
He waddled quickly over to his bedroom, hoping to find Mariah with some explanation and some solution.