Voyeurism: Seeing another urinate without the person knowledge either through video taping by a hidden camera, or by lurking in locations where people are urinating or are likely to have an urge to urinate. The anus has a relatively high concentration of nerve endings and can be an erogenous zone, and the receiver may receive pleasure from external anal stimulation. Insertion in pornography features women inserting various odd hentai porn objects into their anus or vaginas. The buttocks in human females thus contain more adipose tissue than in males, especially after puberty. High heel pornography involves women or men dressed in high heeled shoes. Transsexual pornography features transwomen performers, who typically have male genitalia and augmented female breasts . Reflective of its views on sexuality and culture, Japanese pornography delves into a wide spectrum of heterosexual, homosexual, and transgender sexual acts in addition to unique fetishes and philias. Such films continued to be produced but porn milf could only be distributed by underground channels. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. The name of the practice, when it is done in a repeated in-and-out motion, is derived from its passing resemblance to the dipping of a tea bag into a cup of hot water as a method of brewing tea. Currently, animated television series aimed at adults are some of the most popular and critically acclaimed gay cock forms of entertainment. Pegging is a sexual practice in which a woman performs anal sex on a man by penetrating the man anus with a strap-on dildo. Pornography is often referred to as porn and a pornographic work as a porno. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. Consent is the most important criterion here. Simultaneous penetration of the mouth and either the vagina or anus. While most tentacle erotica is animated, there are also a few live-action movies.