Examples include young gay porn the Girls Gone Wild and Girls Who Like Girls Series. Group sex is sexual behavior involving more than two participants. The rise of the Internet lesbian hentai in the late 1990s and early 2000s similarly changed the way pornography film was distributed and furthermore complicated the censorship regimes around the world and the legal prosecution of obscenity. Individuals are also sometimes abbreviated when referred to in writing, so a dominant person may be referred to as a Dom for a man, and a Domme for a woman. Because the viewing of such films carried a social stigma, they were viewed at brothels, adult movie theaters, stag parties, at home, in private clubs and also at night cinemas. This may relate to fetishes such as voyeurism or cuckolding. Currently, animated television series aimed at adults are some of the most popular and critically acclaimed forms of entertainment. Clothes wetting: The person is sexually aroused by wetting one clothing or observing another person doing so. Saliva pornography involves salivation and saliva. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed. A pornographic work is characterized as hardcore if it has any hardcore content, no matter how small. Transsexual people Transman pornography features performers who were born female and who medically transitioned to male. Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally made pornography designed to appear as if it were amateur. Bhabha, Anne McClintock and Kobena Mercer. Cuckold fetish pornography that involves a nude milfs cuckolded husband. Internal ejaculations, followed by images of semen dripping from the anus, are sometimes depicted in bareback gay pornography, where they are referred to by the term breeding or the reverse money shot. Films with risqué content commenced to be produced soon after the invention of the motion picture in the 1880s.