I've been with my girlfriend for over a year now, and honestly, up until a few days ago, never even thought about this. I just recently saw a vid that had this in it and it turned me on, and it's really got my attention as something I want to try. I've always enjoyed her natural smell down there (especially during 69), and now I'm really looking forward to taking that to the next level.
I just talked to my gf about it and at first she was like "eww" because she doesn't like the idea of me licking the part where brown stuff comes out (wouldn't want to turn me off) but I told her it doesn't bother me as long as she showers before hand, and she said "okay we can try it."
My questions are for both guys and girls (who have done it).
For guys: Is there any taste when doing this? Did you just lick around or actually put your tongue inside her butt?
For girls: How did it feel? Do you enjoy it more/less or the same as when a guy licks your pussy? Any pointers for guys that could make it better?