Oh ho, now that is a surprise. If I had known you liked them dark, I would have worn a different dress.

[But she is teasing him which is completely evident, even if she is surprised. But then again, Sanji's specific taste other than someone being a woman of a certain age range, has been difficult to pin down]

May I ask how it happened? And when?

[Oh, look how interesting this cook is now. Can you feel her eyes on your back? Hmm?]