Jon was starting to think that turning the stone into a girl wasn't the best thing to do. Now, the wishing stone had a mind. And it was using its mind to interpret wishes, instead of taking them at face-value.
Wendi granted wishes according to what Jon meant, as opposed to what he said. That's dangerous. And he didn't much like that she was reading his thoughts, either. Or whatever it was she was doing.
Karyn had settled down. She figured that there was nothing to do about her wished-up sexuality. And really, she'd rather remain bisexual, since she was used to it. At least, in this new reality, she was used to it.
Jon still sat at his desk, thinking. And watching Karyn and Wendi getting "comfortable" with each other on his bed.