Jon made it back to his house, still thinking about the power of the stone. He regretted showing it to Karyn, not because he didn't trust her, but because she used a wish carelessly.
Suddenly, the doorbell rang and Jon opened the door. Karyn was standing there, a little out of breath. Jon still found her hair to be a little out of place.
"Hey, Jon," Karyn said. "I couldn't stop thinking about the stone. I want to try using it some more."
Jon motioned Karyn to come inside. "I don't know about that," he said. "It might be too much power for us."
"That's what I first thought as well," Karyn said. "But what if we set conditions to the length of the wish, like a time limit or a phrase. It's worth a try."
Jon thought about it. "Fine, but if it doesn't work, then I'm putting it away."
Jon took out the stone and held it in his hands. "I wish that for the next two minutes, you were wearing a tight t-shirt."
"Wait, what kind of wish is that?" Karyn asked, looking down. Her thick sweater shrunk down to a t-shirt, showing off her larger breast size.
"It's a safe wish," Jon said with a smirk. "Besides, I wanted to see the effects of your last wish."
"You wanted to see the effects?" Karyn said glaring at Jon. She looked like she was going to get angry, but then calmed down. "Fine, fine. I guess I fell into that one. They really did get bigger, didn't they?" Karyn held her breasts in her hands, causing Jon to turn away, his face turning red. Karyn laughed at Jon's embarrassment.
Two minutes past and the shirt returned to a sweater. "I guess it works then," Karyn said. "I think I have an idea for a game."
"A game?" Jon asked. "Just because we can limit the wishes, doesn't mean we should play around with it."
"Relax," Karyn said. "Don't be so uptight. My idea is that we each get one wish for each other that gradually gets more intense, and the first one who gives up loses. The winner gets one free wish on the other person."