The arousal from being desperate comes from the sensation of having a full bladder. Insertion in pornography features women inserting various odd objects into their anus or vaginas. Tentacle rape or shokushu goukan is found in some horror or hentai titles, momporn with tentacled creatures having sexual intercourse with female characters. BDSM actions can often take place during a specific period of time agreed to by both parties, referred to as play, a scene or a session. Hentai lesbian hentai is the various forms of Japanese pornography, including H-manga, gay movies H-anime, and H-computer games. Guro or Gore is a genre of Japanese pornography involving blood, gore, disfiguration, violence, mutilation, urine, enemas, or feces. Other possibilities are possible, such as a man having sex with two women who are having sex with each other. Reflective of its views on sexuality and culture, Japanese pornography delves into a wide spectrum of heterosexual, homosexual, and transgender sexual acts in addition to unique fetishes and philias. Using the term shemale for a transsexual woman often implies that she is working in the sex trade. See Gay-for-pay. Pornography is generally classified as either softcore or hardcore pornography. 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. Each participant may engage in any type of sex acts with one or both of the others, such as vaginal, anal or oral sex or mutual masturbation. 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. The genres of pornography are based on the type of activity featured and the category of participants, for example mateur pornography is a category of pornography that features models, actors or non-professionals performing without pay, or actors for whom this material is their only paid modeling work.