Oral stimulation of the clitoris or other parts of vulva or the vagina is commonly practiced between women and, like oral stimulation of the nipples, can include the use of teeth in addition to use of the lips or tongue.[11][12] Oral sex that involves the stimulation of the woman's clitoris or other parts of the vulva or the vagina is called cunnilingus. The oral stimulation of the anus, called anilingus, is less often practiced.[12][13]