AFF

AFF is an abbreviation for anal fisting, meaning the insertion of a fist into the anal area. The phrase anal fist fucking is a literal, very direct and colloquial description. In BDSM contexts, this practice is generally considered one of the more intense forms of sexual stimulation and requires experience, trust, communication and careful preparation.

Safety, hygiene and slow progression are especially important. The anal area is sensitive, and doing this too quickly or without care can cause injury. For that reason, people usually use a lot of lubricant, clear agreements and a way to stop immediately. In practice, anal fisting is the more common and precise term.