Pregnancy fetishism is a context where pregnancy is seen by individuals or cultures as an erotic phenomenon. It is used, for example, at fertility clinics to stimulate sperm donors. Terminology for roles varies widely within the various BDSM subcultures. A female dominant in a master/slave relationship is often termed a Mistress, gay cock not to be confused with the colloquial usage of mistress as a kept sexual partner without a similarly formalized power relationship. Performers are usually clean-shaven, thinner and more effeminate than ones in mainstream gay pornography. Mutual masturbation can be practiced by males or females in pairs or groups with or without actually touching another person as indicated by the following examples of contact versus non-contact scenarios: Non-contact mutual masturbation Two people masturbating in the presence of each other but not touching. The arousal hentai sex from being desperate comes from the sensation of having a full bladder. The original definition of dogging – and which is still a closely related activity – is spying on couples having sex in a car or other public place. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina. The term lesbian is also used with regard to sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexuality or same-sex attraction. Matsuo used amateur actresses in his videos, and he usually traveled to their hometowns for the filming. 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 naked milf and Eroticon 2004. 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. 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 .