Both forms of pornography generally contains nudity. Although interracial pornography theoretically can apply to depictions of sexual activity between performers of any different racial groups, the term is most commonly used for heterosexual sex acts between black and white performers. Real enema shots or videos of true medical situations may violate privacy laws in some countries. It spawned numerous sequels, several of which won adult film awards. A homosexual threesome would involve either three men or three women. Watersports pornography features sexual activities involving urine, such as golden showers. Hentai is the various forms of Japanese pornography, including H-manga, H-anime, and H-computer games. First found in softcore movies and erotic thrillers, depictions of lesbianism entered mainstream cinema in the 1980s. Jerk off instruction features a performer encouraging or instructing the viewer to masturbate, often culminating in a countdown at the end of which the viewer is invited to induce orgasm. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed. Transsexual porn star Wendy Williams has stated that transsexual porn is classified gay hentai as Straight Specialty. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. Target audience are teenage / young adult women. It may be used momporn as foreplay, or as an alternative to sexual penetration. A variation on this is to place the fingers and thumb on the gay boy porn penis as if playing a flute, and then shuttle them back and forth. It is commonly depicted in pornography, but very rarely in mainstream cinema. There were also a very limited number of specialist fetish magazines which featured images of bondage, such as the famous Bizarre magazine published from 1946 to 1959 by the pioneering fetish photographer John Willie, and ENEG Exotique magazine, published 1956-1959.