Perhaps one of the things that absolutely turn me on. My bum is very sensitive, and I love being played with and having it being licked too. Especially while she sucks my cock. Something that I learned very long ago, is that having my prostate being rubbed while I am being sucked or jerked off almost always makes me cum immediately. There is definitely something that is exciting to me about having my bumhole played with during oral sex. I love to stimulate my partners the same way. Sliding my finger inside my gf's bum while licking her clit as she is cumming, just is amazing for her. Gets her thighs and legs so rubbery, and finishes her off for at least half hour to an hour. I love it!