anal sex

sexual act of inserting the penis into the anus

This article is about anal sex in human sexual behavior. For anal sex in other animals, see Animal sexuality. Anal sex is a form of human sexual behavior. While there are many sexual acts involving the anus, anal cavity, sphincter valve and/or rectum, the term anal sex is often restricted to anal intercourse: the insertion of the erect penis into the rectum. It is a form of sexual behavior considered to be comparatively high in risk, due to the vulnerability of the tissues and the septic nature of the anus.
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Noun
1. anal intercourse committed by a man with a man or woman
(synonym) sodomy, buggery, anal intercourse
(hypernym) perversion, sexual perversion

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