(Does Jon's mom have a name? How about "Rachel?")
"So Jon is now stuck as his mom for the rest of his life?" Karyn asked.
"Well, no. I... he wished it would last only as long as he desired to be Mom."
"Well," said Karyn, "that does give you an interesting opportunity. You look and think just like Jon, but you're not really Jon, and you probably won't remember being Jon after you change back. You know him better than anyone in the world because of your change. You could really mess with him as payback for messing with you."
"Or," she continued, "if you wanted, you could get Rachel's memories back. They're yours, it's only fair."