Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. For legal reasons, the vast majority gay fuck of so-called reality porn involves professional actors and actresses posing as so-called amateurs. Comic books often featured characters being tied up and tying others up, particularly in damsel in distress plots. Depictions of male and female masturbation are common in pornography, including gay pornography. Hentai is the various forms of Japanese pornography, including H-manga, H-anime, and H-computer games. Crying pornography that features participating actors crying. A female dominant in a master/slave relationship is often termed a Mistress, not to be confused with the colloquial usage of mistress as a kept sexual partner without a similarly formalized power relationship. Real jail or prison or police station shots or videos may violate laws in some countries. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. The scenario is a genre of erotica, which on the internet is sometimes abbreviated naked milf to CMNF, and may involve sexual and nonsexual erotic scenarios. In addition to mainstream pornography, the popularity of facials has led to creation of its own niche market, like video series that specialize in showing the act. BDSM actions can often take place during a specific period of time agreed to by both parties, referred to as play, a scene or a session. 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. As of 2013, little analysis of this paraphilia has been reported in medical literature. Interracial pornographic films have experienced an explosion in popularity, becoming one of the fastest-growing and biggest-selling genres. Snuff hentai sex pornography involves the actual death of any of the participants, consenting or otherwise, simulated death is not considered snuff.