Saliva pornography involves salivation and saliva. Emetophilia pornography involving vomiting and gagging. Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally made pornography designed to appear as if it were amateur. The consent and compliance for a sadomasochistic situation can be granted only by people who can judge the potential results. Gonzo porn is influenced by amateur pornography, and it tends to use far fewer full-body/wide anime hentai shots in favor of more close-ups . The buttocks in human females thus contain more adipose tissue than in males, especially after puberty. Tentacle rape or shokushu goukan is found in some horror or hentai titles, with gay cock tentacled creatures having sexual intercourse with female characters. Bobbi S. Pornography in the early 2000s. It is commonly depicted in pornography, but very big tit milf rarely in mainstream cinema. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. The effect is to give the viewer the sense that they are experiencing the sex acts that they are watching, as opposed to simply watching others as a voyeur. Sadomasochism does not imply enjoyment through causing or receiving pain in other situations . Given the wide range of practices, some of which may be engaged in by people who do not consider themselves as practicing BDSM, inclusion in the BDSM community or subculture is usually dependent on self-identification and shared experience. An orgy is a gathering where guests freely engage in open and unrestrained sexual activity or group sex; and a bunga bunga orgy is an orgy in which participants have sex underwater, such as in a swimming pool or a hot tub. The term is a slang word that originated in the gay community and comes from the equestrian term bareback, which refers to the practice of riding a horse without a saddle. Pornographic films are generally classified into sub-genres which describe the sexual fantasy which the film and actors attempt to create.