People may engage in anilingus for its own sake, before anal fingering or penetration, or as part of foreplay. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. BDSM communities generally welcome anyone with a non-normative streak who identifies with the community; this may include cross-dressers, extreme body mod enthusiasts, animal players, latex or rubber aficionados, and others. Heterosexual bareback sex, as opposed to sex with condoms, not only poses an increased risk of STIs, but for pregnancy as well. Commercialized pornography accounts for a nearly US0 billion worldwide industry for the production of various media and associated products and hentai porn services. Many men who like trans partners of any variety, known as tranny chasers, do not necessarily identify as gay themselves. Lucky Pierre is slang for a person performing both receptive and insertive anal and/or vaginal sex simultaneously during a threesome, being positioned between the two partners. It spawned numerous sequels, several of which won adult film awards. Pegging is a sexual practice in which a woman performs anal sex on a man by penetrating momporn the man anus with a strap-on dildo. This fetish sometimes originates from childhood hot gay sex memories of needing, or of seeing another needing, to urinate. Women that take on the roles of the giantess within this fetish often find the practice to be empowering and enjoy being worshiped. Bhabha, Anne McClintock and Kobena Mercer. This may help them develop their orgasm, increase its pleasure, and may inspire them to masturbate on a more frequent basis. While bondage is a very popular variation within the larger field of BDSM, it is nevertheless sometimes differentiated from the rest of this field. Group sex is sexual behavior involving more than two participants. Terminology for roles varies widely within the various BDSM subcultures. Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well.