But Jon doesn't notice

When Jon got to Karyn's house, he knocked on the door. His knock was answered almost immediately by a five-foot tall, chubby girl with blond hair and very large breasts. "Hi, Karyn." "Hi, Jon. Come on in. What's happening." Jon held his hand out, palm upwards, showing her the stone. "Not much, how's your diet going?" "Not too well; I keep trying, but I'm not losing any weight." When they got up to Karyn's room, she asked, "So, what are you doing here with that, I thought you weren't going to use it right away." "I wasn't, but Sarah found out about it somehow, and got her hands on it. I don't think she got a chance to do anything to anyone except me with it, but I don't know for sure." "What?!? What'd she do to you? And how'd you get it back?"