His mom walked over to him and pulled his hand away from the growing bulge in his pants. "You don't have to hide that from me, Jon," she said, grinning.
Oh man! Mom really thinks I'm her lover. This is sick, Jon thought.
Then she placed her hand on the bulge and began rubbing it. Part of him was turned on, the rubbing felt so good, but another part of him was disgusted and clearly disturbed. This was his mother.
Jon jumped up from his bed, suddenly. "Um ... Mom ... uh ... maybe this isn't the best time to do this."
She stood up. "Well, when is the best time, Jon? Between my job and my housework and you going to school, we hardly ever have any time to have sex."
Jon gulped. She thought it was all completely normal.
But Jon didn't. He had to reverse it. Now.
"What's this?" his mom asked.
Jon looked at what she was talking about and saw that she was holding the stone!