The scenario is a genre of erotica, which on the internet is sometimes abbreviated to CMNF, and may involve sexual and nonsexual erotic scenarios. Some techniques which may work for one individual can be difficult or uncomfortable for another. A survey by the New York City Department of Health and Mental Hygiene found that heterosexual women are more likely to bareback when engaging in anal sex than homosexual and bisexual men. Men may find stimulation of the anus, rectum, and adjacent organs gay boy porn enjoyable. Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. 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. The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. Cuckold fetish pornography that involves a cuckolded husband. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping 3d hentai vagina. Films with risqué content commenced to be produced soon after the invention of the motion picture in the 1880s. Some may keep their hand stationary while pumping into it with pelvic thrusts in order to simulate the motions of sexual intercourse. Clothes wetting: The person is sexually aroused by wetting one clothing or observing another person doing so. Target audience are teenage / young adult women. The prostate gland momsex is one of the organs that contributes fluid to semen. This industry employs thousands of performers along with support and production staff. 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. Multiple men and women Bisexual pornography features one woman and two men who all perform sex acts on each other. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner.