“Oooh, I don’t know. Maaaaybeee your lips, because I can’t stop looking at them. But if you did, then your doctor is really good.”

Deliver it light and kind of flirty and she’s not thinking about whatever trap that question is, she’s thinking about how you just told her you want to kiss her.

If it’s for any other reason - making sure an insecurity is unknown, wanting to springboard into a conversation, wanting to see how you react if she baits you into saying something dumb, or even having her own flirty line to deliver about it - she’ll probably get to it. Assuming you haven’t wooed her into a voracious make out session.