In some societies, the terms fox, plum, chick, or chicken are preferred. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. Bukkake pornography usually depicts numerous men having sex with one woman, with multiple, usually 10 or more, men ejaculating on the female face. 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. The related term twinkle-toes, which implies that a man is effeminate, tends to be used in a derogatory manner. Although pornography has usually focused on heterosexuality, due to the big tit milf prevalence of the heterosexual orientation, explicit gay material has a long history as well, 3d hentai which reaches back to Greek antiquity, if not to prehistory. The sub-genres usually conform to certain conventions, and each may appeal to a particular audience. Crying pornography that features participating actors crying. 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. Unlike Yaoi, Bara is normally made gaysex by actual homosexual men, for homosexual men, and tends to focus on the more realistic obstacles and challenges that come with being homosexual gay cock in J celebrity porn apan. 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. However, the tradition of bondage magazines continues in the form of art books of bondage photographs, published by mainstream publishers such as Taschen. Often a dominant woman, she may be called a Dom, Domme /ˈdɒm/, Femdomme, Domina, or Dominatrix, depending on context or personal preference. Transsexual pornography features transwomen performers, who typically have male genitalia and augmented female breasts .