Several hundred exclusively gay sex video pegging films were produced, as well as twice as many bisexual and straight films with strap-on scenes. Because the viewing of such films carried a social stigma, they were viewed at brothels, adult movie theaters, stag parties, at home, in private clubs and also at night cinemas. It is also known colloquially as gushing or squirting, although these are considered to be different phenomena in some research publications. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings. Older names for a pornographic film include stag film, and blue movie. In S/M, the Sadist is usually the Top and the Masochist the Bottom, but these roles are frequently more complicated or jumbled . 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. Foot fetishism has been defined as a pronounced sexual interest in the feet or footwear. It is used, for example, at fertility clinics to stimulate sperm donors. Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. Incest itself is largely taboo, and is a crime in many countries. Solo performances big tit milf in gay pornography have been described in 1985 as either or both active and/or passive , whereas female solo performances are said to be exclusively passive . Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease. The name was coined from anime hentai the title of the controversial book. In modern BDSM vernacular, the queening stool allows open access to the crotch while seated. Reality pornography is professionally made porn which seeks to emulate the style of amateur pornography.