"Let's start with something simple but very different just to be safe," Linda answered. "I have an idea. Do you trust me to make the wish?"
"What do you have in mind?" Jon asked.
"Ah-ah, that would be telling," Jon's mother replied. "Lets just say that your swim team practice and pick-up basketball game with your friends tomorrow will be very very different."
Jon hesitated, then handed his mother the stone. "Just put a time limit on it so we can reverse it," Jon said.
"Don't worry," Linda answered, "its already built into the wish. I wish that for the next 24 hours, Jon and I would switch genitals. I wish that for the duration of this wish, everybody except Jon and I would think that I was born a woman with a penis and Jon was born a man with a vagina. I wish no one would see this as a contradiction. I wish that for the duration of the swap our genitals will react to the same stimulations that they did when on their original bodies."
Jon finally managed to stammer out a "WH-WHAT?!?!" before the stone flashed.
