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Fellatio (also known as fellation, and colloquially as blowjob, BJ, giving head, or sucking off) is an oral sex act involving the use of the mouth or throat, which is performed by a person on the penis of another person or oneself (autofellatio). Oral stimulation of the scrotum may also be termed ''fellatio'' or ''tea bagging.'' Fellatio can be sexually arousing for participants, and may lead to orgasm and ejaculation of semen for males.〔〔 It may be performed by a sexual partner as foreplay to create sexual arousal before other sexual activities (such as vaginal or anal intercourse),〔 or as an erotic and physically intimate act in its own right.〔〔 Like most forms of sexual activity, oral sex can be a risk for contracting sexually transmitted infections (STIs/STDs). However, the transmission risk for oral sex, especially HIV transmission, is significantly lower than for vaginal or anal sex. Oral sex is often regarded as taboo,〔 but most countries do not have laws which ban the practice. Commonly, people do not regard fellatio or other forms of oral sex as affecting the virginity of either partner, though opinions on the matter vary.〔See (here ) and (47-49 ) for male virginity, how gay and lesbian individuals define virginity loss, and for how the majority of researchers and heterosexuals define virginity loss/"technical virginity" by whether or not a person has engaged in vaginal sex. 〕 People may also have negative feelings or sexual inhibitions about giving or receiving oral sex, or may refuse to engage in it.〔 ==Etymology== The English noun ''fellatio'' comes from ''ラテン語:fellātus'', which in Latin is the past participle of the verb ''ラテン語:fellāre'', meaning to suck. In ''fellatio'' the ''-us'' is replaced by the ''-io''; the declension stem ends in ''-ion-'', which gives the suffix the form ''-ion'' (cf. French ''fellation''). The ''-io''(''n'') ending is used in English to create nouns from Latin adjectives and it can indicate a state or action wherein the Latin verb is being, or has been, performed. Further English words have been created based on the same Latin root. A person who performs fellatio upon another may be termed a ''fellator''; because of Latin's gender based declension, this word may be restricted by some English speakers to describing a male. The equivalent term for a female is ''fellatrix''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fellatio」の詳細全文を読む スポンサード リンク
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