Humoring Joan

"Hey, Zoe," Joan said, walking into her room. Just because they were twins didn't mean that they shared one bedroom. "Oh," Zoe said, looking a little annoyed. "Hi, Joan. What did you want? I'm kind of in the middle of something." Joan saw that her sister was chatting with someone online. "I wanted to show you *this*," Joan said, holding out the stone. "What is it? A stone?" "Not just any stone. It grants wishes." Zoe looked oddly at her sister. "For real." Zoe took it from Joan and looked closely at it. "It looks like a normal rock." "Well, it's not. Go ahead and wish for something. Just don't make it anything too big." Zoe looked at Joan oddly again, but then shrugged her shoulders and humored her sister. "I wish ..."