[She eyes him as she starts to cook, okay... Based on her extensive -not really- knowledge of the average saiyan prince, Vegeta version... She will make the wild guess that he wants a bath.]

You can shower at the room next door. Or you could have a bath if you prefer to. Depends on how soon you want to eat, don't think I'm a slow cook who can't prepare enough food for you in what it takes you to take a mere shower.

[She has experience, man. And she's going to make the best food you have ever eaten. Not that she wants to impress you, it would be useless anyway.]