These styles are much closer to the style of bondage scenes in mainstream television. Other fetish Bareback pornography features performers who are not wearing condoms. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings. The cover can have hinges or be a separate part. Barebacking usually refers to a conscious and deliberate choice to forgo condoms. While wearing diapers, a diaper fetishist generally experiences a comforting feeling. Its gain in prominence has been attributed to its depiction in the film Pecker, which was released in 1998. During anal sex, male pleasure can be particularly derived from the prostate, which can lead to an orgasm and ejaculation. No causal relationship is known between masturbation and gay twinks any form of mental or physical disorder. Mutual masturbation, mutual manual stimulation of the genitals between partners, can be a substitute for sexual penetration. Irrespective of the legal or social view of pornography, it has been used in a number of contexts. The term sadomasochism is derived from the words sadism and masochism . The loose and direct camera work often includes tight shots of the genitalia, unlike some traditional porn. As a form of non-penetrative sex, it can be done for its own enjoyment or as celebrity news foreplay. Diaper fetishism, 3d hentai nappy fetishism or diaperism, is a sexual fetish in which a person feels a desire to wear or use diapers. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face. A scene where many women have sex with one man is referred to as a reverse horny milfs gang-bang. A bisexual threesome may involve a man celebrity porn having sex with a man and a woman, the woman having sex with a man and a woman, or all three having sex with each other. Interactive pornography, available in CD-ROM and DVD format, allows the viewer to select the particular acts performed at any one time, sometimes with the camera providing a first person view.