Buck Angel is the best-known actor in this genre. Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person anus, or anus and rectum, for sexual pleasure. For example, the Kama Sutra, in particular, goes into specific detail on how to properly strike a partner during sex. Fisting may be performed with or without a partner. BDSM pornography depicts bondage and discipline, domination and submission, sadism and masochism. One or more of the participants may engage in autoerotic milf xxx sexual activity, such as masturbation, possibly without physical contact with the other participants. Unlike Yaoi, Bara is normally made by actual homosexual men, for homosexual men, and tends to focus on the more realistic obstacles and challenges that come with being homosexual in Japan. Instead, lesbian relationships have often been regarded as harmless and incomparable to heterosexual ones unless the participants attempted to assert privileges traditionally enjoyed by men. In straight pornography, intercourse is often followed by a facial, pearl necklace or other visible ejaculation. Other forms of anal sex include fingering, the use of sex toys for anal penetration, oral sex performed gay boy porn on the anus , and pegging. In the 1970s, the hardcore pornography genre introduced the stereotypical cumshot scene as a central element of the hardcore film, in which the male actor ejaculates in a way ensuring maximum visibility hentai movies of the act itself. Bukkake pornography usually depicts numerous men having sex with one woman, with multiple, usually 10 or more, men ejaculating on the female face. Though the term anal sex most commonly means penile-anal penetration, sources sometimes use the term anal intercourse to refer exclusively to penile-anal penetration, and anal sex to refer to any form of anal sexual activity, especially between pairings as opposed to anal masturbation. Some couples use pornography at times for variety and to create a sexual interest or as part of foreplay.