Pornography is often referred to as porn and a pornographic 3d hentai work as a porno. Hentai is the various forms of Japanese pornography, including naked milf H-manga, H-anime, and H-computer games. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina. Transsexual people Transman pornography features performers who were born female and who medically transitioned to male. Other possibilities are possible, such as a man having sex with two women who are having sex with each other. Emetophilia pornography involving vomiting and gagging. Reality Reality pornography refers to real or faked amateur encounters. There is also some evidence that pornography can be used to treat voyeurism. BDSM is a variety of erotic practices involving dominance and submission, role-playing, restraint, and other interpersonal dynamics. A few extremely flexible males can reach and stimulate their penis with their tongue or lips, and so perform autofellatio. A pearl necklace is a slang term referring to a sexual act in which a man ejaculates semen on or near the neck, chest, or breast of another person. The term lesbian is also used with regard to sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexuality or same-sex attraction. They cited the Internet and text messaging as common ways of organising gay bear porn meetings. Enema pornography involves adults given enemas to others, often fake. Such explicit sexual interaction is seen only rarely in public play spaces, and it is sometimes specifically banned by the rules of a party or playspace. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. Currently, animated television series aimed at adults are some of the most popular and critically acclaimed forms of entertainment. This category also includes pornographic home movies. Such films continued to be produced but could only be distributed by underground channels.