Felching is a sexual practice involving the act of orally sucking semen out of the vagina or anus of one partner. His most famous model was Bettie Page, who became the first celebrity of bondage film and photography. Rimjob pornography centers around anilingus. Yuri : Featuring two grown adult women in a homosexual/lesbian relationship. Some men enjoy masturbating during hentai sex pegging. A study of the condom usage habits of New Zealand sex workers said that they offered various safe sex alternatives to vaginal sex to clients who refused to wear a condom. Women with women Main article: Lesbianism in erotica: Lesbianism in contemporary pornography Lesbian or girl-girl pornography features women milf fuck engaged gay twinks in sex together, but is typically aimed at a male audience. Scat or brown pornography features defecation, manipulation of feces, or consumption of feces, in reality or fantasy; a well-known example is the 2 Girls 1 Cup video. Being forced to wear diapers as a form of humiliation is sometimes a behavior encountered in sexual masochism. A scene where many women have sex with one man is referred to as a reverse gang-bang. The naked appearance of actress Demi Moore in the advanced stage of pregnancy on the cover of Vanity Fair magazine in 1991 marked the beginning of a period which has since seen pregnancy presented by celebrities as a glamorous state of living, while also creating a market for photographers to produce images of pregnant mothers, and for fashion stylists to introduce pregnancy styling to their business. In the West, masturbation in private or with a partner is generally considered a normal and healthy part of sexual enjoyment. Unlike smothering, in facesitting the bottom partner is not deprived of air. The term has also applied to other professions and even companies trying to appeal to a gay demographic. Erotic spankings are commonly combined with other forms of sexual foreplay. The queening stool is also related to a smotherbox, which also allows the person under the seat to be locked in place, restrained by the neck as in a set of stocks.