Nope, that's it, he can't recover from this. Somewhere in the back of his head, he's mortified that he is completely hard under the layer of bubbly water - it's really all he can do not to touch himself, given that Herbert's hearing would most CERTAINLY pick up on the splashing that would happen.

So now he has to just...live with that, breathing heavily and saying nothing as he keeps his eyes shut and tilts back his head obediently.

He's being teased, he gets that. But the way it feels....