Another variant of reality pornography consists of normal couples that are filmed by professionals, in which case the only obvious distinction from amateur pornography is the higher quality of production, filming and editing. Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. When sexual activity is videos gays centered on one of the threesome, then the activity may be described as a gang bang of the person. Although pornography has usually focused on heterosexuality, due to the prevalence of the heterosexual orientation, explicit gay material has a long history as well, which reaches back to Greek antiquity, if not to prehistory. Such films continued to be produced but could big tit milf only be distributed by underground channels. 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. Some couples use pornography at times for variety and to create a sexual interest or as part of foreplay. The current record is held by Lisa Sparks who had sex with 919 men on October 16, 2004 in Warsaw, Poland as part of the Third Annual World Gangbang Championship and Eroticon 2004. These agreements are binding in the sense that the parties have the expectation that the negotiated rules will be followed. Sub-genres of Japanese porn Among the various sub-genres of Japanese pornography are the following: Lolicon ロリコン: This genre involves prepubescent and adolescent girls between the aged of 6-12. A variant of A2M is ATOM where a performer inserts his penis gay hentai directly from one recipient anus into a second recipient mouth. Transsexual people Transman pornography features performers who were born female and who medically transitioned to male. Most soft crush fetishists avoid being placed under the same label as hard crush fetishists, believing that crush films with larger animals give the entire group a bad label.