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. Lesbian pornography made for women is usually made by women, and usually features women who identify as lesbian or bisexual. The term is a slang word that originated in the gay community and comes from the equestrian term bareback, which refers to the practice of riding a horse without a saddle. Kinbaku means tight binding porn milf Kinbaku-bi which literally means the beauty of tight binding. Within a BDSM or D/s context, facesitting can be an especially intense form of erotic humiliation. The term discipline describes psychological gay twink porn restraining, with the use of rules and punishment to hentai porn control overt behavior. Gloryhole pornography features women performing fellatio on unidentified men through a small hole made in a bathroom divider. Women porn is often produced by women and aimed specifically at the female market - rejecting the view that men are turned on by porn but women only by a box of chocolates. As of 2013, little analysis of this paraphilia has been reported in medical literature. Targets the male audience, but is much less popular than Yaoi. The work of Bruce Seven has been called reality porn, due to his lack of using scripts and asking his performers to act naturally in their own character. Entacle erotica describes a type of pornography most commonly found in Japan which integrates traditional pornography with elements of bestiality and a fantasy, horror, or science-fiction theme. Reality Reality pornography refers to real or faked amateur encounters. A female dominant in a master/slave relationship is often termed a Mistress, not to be confused with the colloquial usage of mistress as a kept sexual partner without a similarly formalized power relationship. A variation on this is to place the fingers and thumb on the penis as if playing a flute, and then shuttle them back and forth. Sexologist Alfred Kind suggested that the buttocks is the primary sexual presentation site in primates.