As in B/D, the declaration of the Top/Bottom may be required, though sadomasochists momporn may also play without any Power Exchange at all, with both partners equally in control of the play. 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. Foot fetishism, foot partialism, foot worship, or podophilia is a pronounced sexual interest in feet. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. They may repeat this cycle multiple times. Actors are mostly amateur; any well-known actors in bisexual porn tend to be from the gay pornography industry. Various groups within society have considered depictions of a sexual nature immoral, labeling them pornographic, and attempting to have them suppressed under obscenity and other laws, with varying degrees of success. A large part of the popularity of these videos is seeing how regular and normal the girls are in real-life. Solo gay sex video pornography hentai porn features performers masturbating. Using the term shemale for a transsexual woman often implies that she is working in the sex trade. Sloppy seconds is a slang phrase for when a man has sexual intercourse with another person who already has received another man penis in the relevant orifice and is therefore wet or sloppy. Interracial pornography typically employs ethnic and racial stereotypes in its depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation of actors by race has diminished considerably. 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. 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.