Interracial pornographic films have experienced an explosion in popularity, becoming one of the fastest-growing and biggest-selling genres. 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. Cum-shot pornography features a collection of male ejaculation scenes. Ethnic pornography is a genre of pornography gay sex video that features performers of specific ethnic groups, or depictions of interracial sexual activity. Snuff pornography involves the actual death of any of the participants, consenting or otherwise, simulated death is not considered snuff. Gonzo porn is influenced by amateur pornography, and it tends to use far fewer full-body/wide shots in favor of more close-ups . Real enema shots or videos of true medical situations may violate privacy laws in some countries. Actors are mostly amateur; any well-known actors in bisexual porn tend to be from the gay pornography industry. A common way that these are depicted in a single scene is with one woman and two men performing together. The buttocks in human females thus contain more adipose momsex tissue than in males, especially after puberty. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. Individuals who can change between top/dominant and bottom/submissive roles—whether from relationship to relationship or within a given relationship—are known as switches, though the term switch in this context is occasionally seen as derogatory and is rejected by many who might simplistically fit the definition. This category also includes pornographic hentai movies home movies. In the 1970s, the hardcore pornography genre introduced the stereotypical cumshot scene as a central element of the hardcore film, in which the male actor ejaculates in a way ensuring maximum visibility of the act itself.