He stares at her hand for a moment before taking it.

"All right. But just one thing: the 'Doctor's orders' thing doesn't work on me. I serve at the pleasure of the human race. That is enough of an order."

He offers her hand a gentle squeeze.

"Also, I'm rubbish at taking care of myself, ask anyone. So if I have problems following such orders, well, you've been warned."

But he's not debating either the bubble bath nor the offer of a bed, which is actually surprising in itself.