It's nice, comfortable, that she laughs and doesn't press the issue. She isn't likely to just say what she thinks about him to anyone at random. Wishing for magic is unusual, just as a whole, but at the same time, for someone young, he could see that being an easy childhood wish. To make fire, lightning, on command, making life easier. Using the magic and not letting it use you.

He swings their hands lightly. "And what does the little stream wish for now?"