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Anilingus (also spelled analingus) is an oral and anal sex act (anal–oral contact or anal–oral sex) in which one person stimulates the anus of another by using their tongue or lips.The anus has a relatively high concentration of nerve endings and can be an erogenous zone, and so the recipient may receive pleasure from external anal stimulation, whereas pleasure for the giver is usually based more on the principle of the act. People may engage in anilingus for its own sake, before anal penetration, or as part of foreplay. All sexual orientations may participate in the act. Studies confirm anilingus to be one of the sexual practices between women, though only practiced by a minority.Safer sex practices generally revolve around hygiene so as to prevent fecal–oral route transmission of diseases. Extra precautions include STI testing, dental dams, or enemas.

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