That does get a giggle out of her. Okay, so it's not a proper fish pun if you call it out first, but she mentally ticks off a half a point for him, for the effort. She watches him curiously as he moves, trying to anticipate his next move. It seems straight forward enough to her, but he decides to take a different approach, apparently.

If he was trying to make her squirm, he's succeeded. There's an effort on her part not to flail too much and hurt him, but she does grab at the nearest surface and lets loose a little glub. Part of it is just the surprise, but the other part is just how good it feels.

"Hey," she whines, and she gives him an exceedingly fake pout when she pushes herself up on her elbows to look at him, though she doesn't tell him to stop. She is all for experimenting, and she knows he's teasing her, but what's the point of that if she just goes along with it?