"... so that's the deal," said Jon to Karyn, who was holding the stone wishing penis (after all, she wanted to touch it too).
"Now that's a problem." said Karyn. "I think I have an answer but I don't think you're going to like it."
"Karyn, I'm willing to try anything. Right now my penis is an inert piece of stone that's not attached to my body. I could just as well not have one."
"Okay," said Karyn. "Your grandfather's note said that you, or everyone who touches it flesh to flesh, can make a wish by touching it. But you just wished girls who touch it can't make a wish. Those can only both be true if nobody can touch it, right?"
"Right..."
"That's not right. First of all, it doesn't have to be stone to keep anyone from touching it flesh to flesh. Maybe it's normal but if someone tries to touch it they get pushed away. Second, the wish is only about girls. It won't contradict anything to have guys be able to touch it."
"So I just have to wish that the stone penis is normal but girls can't touch it?"
"Right."
"Hmm. I wish this penis is flesh and attached to me normally, but girls can't touch it."
"Wait a minute! Why did you just do that, Jon?"
"Because I wanted my penis back!"
Karyn reached out for John's crotch. "Let me touch it," she said. But as soon as she tried this she found herself shoved back.
"Looks like it worked fine," said Jon.
"I didn't expect you to make the wish five seconds after I gave suggestions, Jon! You just wished that no girl could ever touch your penis. How exactly will you ever have sex then?"