*thinks*
I am into anal-play, so:
1. it wouldn't bother me if my partner would tell me that he's interested into that, actually it would be a turn-on for me. Of course, it depends a lot on how he says it, because I like dirty talking, but there are many words I dislike, or words that make me laugh :) (instead of turning me on).
2. and if I, as a girl, would tell to my bf that I'm turned on by his "butthole" - yes, I would do it. Actually, he already knows it.