Jon looked in the mirror over the sink to find Karyn's body reflected in it, with Karyn's face staring back. He blinked and so did the face. There was no question about it--he had turned into Karyn. He went into the bathroom stall and locked the door, then pulled his jeans down to find panties which covered decidedly female parts.
Then he noticed a mole he had had. It was still there. So he still wasn't exactly like Karyn--but even identical twins weren't exactly like each other.
Jon rushed home, but felt no more strange sensations. He ran back up to his room only to find it was larger, with two beds next to each other, and Karyn sitting on one. "Hi Jonnie," she said. "Did you find those CDs you were looking for?"
"I... no, I didn't, but what are you doing here anyway?"
"Come on, it's our room. You're acting as strange as Mom."
"Mom? What are you talking about, Karyn?"
"Our mother. You know, downstairs? She hardly recognized me--she knew my name but I called her 'Mom' and she freaked out."
"Our mother?" Jon(nie) silently groaned. "I don't suppose you've seen the magic stone around? I think something's wrong. In fact, I know it."
"Maybe that's why Mom was acting so strange. You left the stone with your porn collection. If she was in there, I'm sure she knows you're a lesbian..."
Jonnie, having some idea of what was going on now, asked "You didn't tell her anything, did you?"
"Me? I'd never do anything like that! We're twins, we need to stick up for each other."
Jonnie looked under the bed in the hidden spot where she had stashed the porn and the stone. "Karyn," she said, pulling out the stone, "it's still here. But I know she used it. I'm going to need to fix this... I wish that Mom forgot about my porn collection, and thinks that anything she wished for today was perfectly normal and doesn't remember the wishes. While we're at it, I wish that any body changes caused by the stone happen without any pain or discomfort."
"What's all that for?" asked Karyn. "The porn I understand, but she didn't make a wish, did she?"
"It's a long story," said Jonnie. "Now, I wish I knew what wishes Mom made on the stone."
Which she did, now. A whole bunch of wishes that Jon be like Karyn, then one that Jon be a lovely young girl like Karyn, which pretty much sealed it. And one more--wishing that Jon would act like himself. That was pretty much all that had saved Jon, since otherwise the 'lovely young girl' wish would have left him thinking he was a girl all along.
"What was it?" asked Karyn.
Jonnie thought. What should she tell Karyn? Telling Karyn that all her memories were wrong could be a big shock. She could tell karyn just part of the wish, or just wait for later....
Anyway, there was no way to reverse the wish that Jon knew. Jon decided....