"Sort of," said Jon. "I can't reverse wishes with this, but I can modify them. I just need to think of some way to modify this one to let you become a girl again. If I wished you have long hair you could still cut it. That would reverse it."
"That doesn't make any sense. That would mean you wish I'm a guy, but I could still get a sex change operation and become a girl. Jon... you'd better think of something better than that."
"Sorry, Xenia. I wasn't thinking. No, I can think of something better. I wish there's a ray gun which changes people's sex. I wish that it is set to wear off after an hour. I wish that Xenia is a guy because I shot her with the ray gun almost an hour ago."
In Jon's hands appeared what looked like a red plastic gun with a white grip resembling something from an old Flash Gordon serial. It had a dial and some buttons near the grip. Jon put it down on top of a locker. He didn't need it, after all.
"It's not doing..." Xenia put her hand to her chest. "Oooh. I feel it. I'm growing breasts again." Soon she had returned to normal. "Really, Jon, what were you thinking? That could have been dangerous.... And besides, if your wish changes reality, doesn't that mean that everyone remembers I was a guy for the past hour?"
Jon reluctantly nodded. Xenia reached for the gun. Jon said "That can be dangerous too."
"Less dangerous tha permanent magic," said Xenia. "Besides, it looks like fun...."
