There's a ringing in her ears as she realises what is happening, and she whips her head around so fast she nearly gets seasick. He's taking off his robe. And he, Man of Culture that he is, is probably not wearing a ridiculous bathing suit. If his world even has bathing suits.

Don't think about whether they swim naked!

"Sounds great!" she says, having heard absolutely not a single word of what he just said. Eyes forward, shoulders tense, she waits for the inevitable sounds of someone getting into the hot springs with her.