"Wow, this is complicated," said Jon/Becky. "But what can we do about it? You look like me, you remember being me, you may as well be me. But I'm also me, even though I'm in a girl's body now."
"Well, let's see," said the other Jon. "We could make a wish that makes you think you're Becky, or maybe ..."
"What? No way. I don't want to think I'm a girl. It's bad enough I'm stuck in the body of one."
"And what is that supposed to mean?" Karyn asked. "There's nothing wrong with being a girl, you know."
"You wanna bet?" Jon/Becky asked.
"No, but I can wish." While Jon/Becky was still holding his stone, Karyn took the other stone from the other Jon and said (knowing that it would be granted to Jon/Becky) "I wish I ..."