Here are all the facts, experiences, techniques and media/links we have on:

Analingus

also known as Rim, Rimming, Rim Job, Ass Licking, hedralingus

SAFETY NOTICE

CLEAN FIRST.  It's actually a good rule for life: before you put your mouth on it, make certain it's clean.

Oral stimulation of the anus, including licking and oral caressing of the anal opening.