POV pornography involves camera angles designed to provide the viewer a view similar to that seen by one of the participants, whose face is never shown. The higher pay scale and profile within a production often leads to group scenes where a straight actor only tops. Kinbaku is a Japanese style of bondage or BDSM which involves tying up the bottom using simple yet visually intricate patterns, usually with several pieces of thin rope . An orgy is a gathering where guests freely engage in open and unrestrained sexual activity or group sex; anime hentai and a bunga bunga orgy is an orgy in which participants have sex underwater, such as in a swimming pool or a hot tub. It is practiced by people of all sexual orientations, and can be part of a full repertoire of sexual activity. Teacher and Student or Boss and Secretary pornography involves sexualized situations which take place between an authority figure, such as a teacher or boss, and an underling, such as a student or secretary, often fake. Fisting pornography features the insertion of an entire hand into a performer vagina or anus. Most consumers of bisexual pornography do not identify as gay. Technically this is a form of exhibitionism rather young gay porn than group sex per se. This is sometimes the case for punishment scenes between master/slave couples or for some extreme or edgeplay scenes which may include abductions, rape play, or interrogation. As of 2010, they were reported to live together as a monogamous couple outside of naked milf their porn careers and want to continue working together for another 50 years. Pornography can be classified according to the physical characteristics of the participants, fetish, sexual orientation, etc., as well as the types of sexual activity featured. However the genre remains a very small proportion of the pornographic DVD market; for example at porn retailer HotMovies. The films were financially successful, winning AVN Awards for the best selling pornographic films of their year; however the events were effectively un-officiated and the record breaking claims often misleading.