At that moment, Jon made a grab at the rock. Luckily, his leg wasn't as hurt as he had first thought and he was able to knock the rock from Sarah's hand and cause her to fall to the floor. He scrambled for it and, success, he was able to pull the rock into his palm.
"I wish..." he started, but nothing came.
Nothing, that is, but images of Karen's breasts. He tried to think of some way to stop himself, but the wish came out.
"I wish Karen was here right now."
Karen suddenly appeared in Sarah's room, looking disoriented.
"Jon," she said, "What's happening?"
"I wish Karen was topless," said Jon against his will.
Suddenly Karen's shirt and bra vanished, causing her to look down in shock at her perfect breasts, now visible to the world.
"Jon!" she shouted.
"Karen," he pleaded, "I'm sorry... but I wish..."