Some BDSM practitioners prefer a code of behavior that differs from SSC and is described as risk aware consensual kink , indicating a preference for a style in which the individual responsibility of the involved parties is emphasized more strongly, with each participant being responsible for his or her own well-being. Men and women may masturbate until they are close to orgasm, stop for a while to reduce excitement, and then resume masturbating. Tentacle rape or shokushu goukan is found in some horror or hentai titles, with tentacled creatures having sexual intercourse with female characters. Bisexual DVDs sell much better online than in adult video stores, possibly due to customers in stores feeling embarrassed to buy them. The higher pay scale and profile within a production often leads to group scenes where a straight actor only tops. Depictions of male and female masturbation are common in pornography, including gay pornography. Currently, animated hentai sex television series aimed at adults are some of the most popular and critically acclaimed forms of entertainment. A crush fetish is a fetish young gay porn in which one is sexually aroused usually when someone crushes objects, food, and sometimes small animals with their body, usually under their foot, or when crushed oneself. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. This nude milfs stop and go build-up, known as edging, can achieve even stronger orgasms. In pornography, depictions of lesbian sex form a popular subgenre, directed toward a male heterosexual and female homosexual audience. A celebrity may allow such a recording to surface willingly, as part of a publicity stunt. These agreements are binding in the sense that the parties have the expectation that the negotiated rules will be followed. Clothes wetting: The person is sexually aroused by wetting one clothing or observing another person doing so. 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.