Oh -- sure, of course.

[ he hasn't forgotten what she said last time about her "tea," but he's hoping he was just jumping to conclusions about what she meant. He's way too polite to say no, anyway - at least to Elizabeth. None of that shows on his face, naturally; he just continues chatting lightly. ]

If you're planning to talk to me about quantum physics later, I'm sure I'll need all the energy I can get.