Analingus
Analingus, colloquially known as rimming, is sexual activity involving contact between the anus or perianal areas of one person and the mouth of another. Thus, analingus is simultaneously anal sex and oral sex.While rimming is usually associated with homosexual males, analingus is practiced by mixed-gender (heterosexual or bisexual) and lesbian couples as well. In both sexes, the human anus contains pleasurable nerve endings similar to those in the penis.
Unprotected analingus involves risks of contracting sexually transmitted diseases, as well as intestinal parasites and poisoning by contact with feces. However, the risks are mitigated by simple thorough washing with soap and water, and virtually eliminated when the use of a dental dam is applied. When combined with standard courses of hepatitis vaccinations, analingus is usually regarded as a low-risk sexual activity, for example with regard to the risk of transmission of HIV.
Famously, the Starr Report made mention of "oral-anal contact" between President Bill Clinton and intern Monica Lewinsky. However, no mention was made in the report of who was on the giving and who was on the receiving end of the act.
References to analingus were made in the sitcom Sex and the City, where the character Carrie uses the euphemism "tuckus lingus," and in the first several minutes of the first episode of the British Queer as Folk.