fellatio

Fellatio (also known as fellation, and in slang as blowjob, BJ, giving head, or sucking off) is an oral sex act involving the use of the mouth (including the lips and tongue) or throat performed by a person on the penis of another person. Oral stimulation of the scrotum may also be termed fellatio, or colloquially as teabagging. If fellatio is performed on oneself, the act is called autofellatio.
Fellatio can be sexually arousing for both participants, and may lead to orgasm for the partner being fellated. It may be performed by a sexual partner as foreplay before other sexual activities such as vaginal or anal intercourse, or as an erotic and physically intimate act of its own. Like most forms of sexual activity, oral sex creates a risk of contracting sexually transmitted infections (STIs/STDs); however, the risk is significantly lower than that of vaginal or anal sex, especially for HIV transmission.Most countries do not have laws banning the practice of oral sex, though some cultures may consider it taboo. People may also refuse to give or receive it due to negative feelings or sexual inhibitions. Commonly, people do not regard forms of oral sex as affecting the virginity of either partner, though opinions on the matter vary.

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