Peridot can't help but snicker the first time he fucks up, her amusement only increasing with each awkward shift he has to make to get at the ball again. Then at his comment, she just snorts, lazily spinning the sticky hand in a slightly wider arc. "Guess you're just not as good at this game as you thought you were," she teases, tail twitching gleefully.

Yeah the toy spinning is a cover for the fact that she is definitely using her metal powers to get back at him by fucking up his swings right now. She'll let him get the next two strokes without issue, just to keep him from getting suspicious, but she's hoping she fucked with him enough that it'll take him at least another two to recover.