Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. It spawned numerous sequels, several of which won adult film awards. Others mature milfs involve partners who naturally have a significant difference in size. See Gay-for-pay. But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period. A pearl necklace is a slang term referring to a sexual act in which a man ejaculates semen lesbian hentai on or near the neck, chest, or breast of another person. Enema pornography involves adults given enemas to others, often fake. It is commonly depicted in pornography, but very rarely in mainstream cinema. By Japanese law, the genitals of actors and actresses must be censored and up the mid-1990 so was the depiction of pubic hair. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. It is suggested that much of the obscurity and the uncertainties about female ejaculation are related to mixing up these two phenomena. Twink pornography features younger performers, and usually features young men under 30 who identify gay bear porn as gay or bisexual. Many men who like trans partners of any variety, known as tranny chasers, do not necessarily identify as gay themselves. The term soft crush refers to the more common fetish surrounding videos involving inanimate objects or small invertebrates being crushed, while the term hard crush refers to such videos involving larger animals with vertabrae, and arguably more pain-susceptible animals . Transsexual porn star Wendy Williams has stated that transsexual porn is classified as Straight Specialty. If ejaculation is onto the other person face it can be called a facial. The anus has a relatively high concentration of nerve endings and can be an erogenous zone, and the receiver may receive pleasure from external anal stimulation.