Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. The higher pay scale and profile within a production often leads to group scenes where a straight actor only tops. Consent is the most important criterion here. There are currently no known laws forbidding the crushing of objects and insects, however the production or trade of crush erotica involving live vertebrates is condemned by animal rights activists and is illegal in many countries, including the United States and Great Britain. Human urinal: An act common in the bondage sex community where a male or female slave will serve as a urinal for a dominant partner. Bestiality pornography involves the sexual attraction of humans to animals. Some actors who are actually gay or bisexual will be marketed as straight to appeal to the allure of the unattainable, because straight men are virgins to sex with other men, and as in most gay male settings, the young, the muscular, and the unfamiliar are more sought.. A smotherbox has two gay cock openings. As observation is encouraged, voyeurism and exhibitionism are anime hentai closely associated with dogging. In September 2003 the BBC reported on the new dogging craze. Discipline often incorporates sadomasochistic aspects, though some sadomasochists distance themselves from D/s practices such as punishment. Masturbation has been depicted in art since prehistoric times and is mentioned and discussed in very early writings. In places where non-monogamous sex is taboo or illegal, group sex may take place in private or clandestine locations including homes, hotel rooms, or private clubs. Crying pornography that features participating actors crying. For example, the milf fuck Kama Sutra, in particular, goes into specific detail on how to properly strike a partner during sex. Actors are mostly amateur; any well-known actors in bisexual porn tend to be from the gay pornography industry. BDSM pornography depicts bondage and discipline, domination and submission, sadism and masochism.