I'm curious to hear some of the answers and or stories here.
As far as an AMP goes which is where I took
@Nehoma post from, I've been in the situation where I've heard the tell tale signs of a guy getting fucked, i.e. the table rhythmically creaking or the slurping sounds of a dick being sucked. Not so much a turn on but in some cases if I didn't already know, now I was sure extras were available.
But hearing a dude talk to the girl is a definite boner crusher.