"You just took a picture of me!" yelled Jon.
"What's wrong with that?" asked Emily.
"Well, uhh, what if someone got it? No, they'd think it was fake... but what if Karyn used it? She could transform me again."
"Not for the rest of the night," replied Karyn. "And if I wanted to I could show you a Photoshopped picture. Or we could wish to transform you by words or by imagining what you look like. Anyway, you have clothes."
"No I don't. I look ridiculous, and I can't walk out of the store wearing these, I have to buy them first."
"Sure," said Karyn. "You'd better put your jeans on even though there is water on them." She grinned, leaving Jon to wonder if something was up.
As soon as they left the store and entered the mall, Karyn whispered something to Emily. Emily gave her the phone and she held out the phone with both hands, showing the picture on it to Jon. Jon's clothes instantly changed and once again he looked just like he did in the store.
"Wha--?" said Jon. "That's impossible. I wished you couldn't do that."
"No it's not," said Karyn. "I was able to transform you because of a wish. You can't wish that I'm not able to do that--that's reversing a wish..."
"... and I can't reverse wishes," ended Jon. "Geez. I expected it would just interpret it to mean you could only transform me once, or something like that. I guess I have to tell the stone that, it doesn't reinterpret by itself. How am I going to go around in the mall looking like this?"