Its never TMI for me, and am always curious to hear others experiences in situations I have found myself in.
I have never really been into fem guys (although if one with a 10" cock asked me to suck it, I WOULD) or guys that see themselves as women. So calling their asshole a pussy is a turnoff to me, although I have never been in a "cock giver" situation, but often like to RIM, and when the guy asks me to "eat his pussy", it makes my cock limp, even with 100 mg of Viagra....
Although a bit of "appropriate" talking is OK for me during sex, it is much more of a turn-on when I watch porn. Except if its a continuous barrage of "oh fuck, oh fuck, oh fuck"...... that's a NO !