An orgy is a gathering gay twinks 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. In many cases, that person is also aroused by smelling body parts that have a urine scent. Squirt pornography involves women ejaculating. But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period. Using the hentai movies term shemale for a transsexual woman often implies that she is working in the sex trade. 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. Some couples use a threesome as a way to develop a love triangle momporn . This is why video stores might consider stocking transgendered subject matter in the straight section, as some straight men will have passive or active sex with another man as long as their partner appears to look like a woman to them, to some minor or major degree. These typically are leaked to the public via the Internet, with or without the celebrity consent. As with most forms of sexual activity, anal sex participants risk contracting sexually transmitted infections . Discipline often incorporates sadomasochistic aspects, though some sadomasochists distance themselves from D/s practices such as punishment. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. Jail/Prison/Police pornography involves people in police custody or inmates in jails or prisons in various sexual situations, such as strip searches or body cavity searches. Gang bang pornography is a type of pornography that depicts an individual engaging in physical sexual activity with multiple partners sequentially or at once.