Simultaneous penetration of the mouth and either the vagina or anus. Pornography in the early 2000s. Body parts including fingers, tongue and penis momsex may be used for anonymous oral, vaginal and/or anal intercourse. The related term twinkle-toes, which implies that a man is effeminate, tends to be used in a derogatory manner. Adult animation is genre of animation geared towards adults and sometimes teens. A common way that these are depicted in a single scene is with one woman and two men performing together. Pornography is often referred to as porn and a pornographic work as a porno. Sexologist Alfred Kind suggested that the buttocks is the primary sexual presentation site in primates. The inside of a smotherbox is often padded to provide support for their neck and prevent their head from moving. Transgender pornography features performers who cross-dress for sexual gratification, either for themselves or for their partners. Gloryhole pornography features women performing fellatio on unidentified men through a small hole made in a bathroom divider. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. Homi Bhabha defined the idea of a racial fetish in contrast to the idea of the Freudian sexual fetish which he describes a denial of difference, where the male sees the female as a castrated male, seeing missing parts rather lesbian hentai than a different anatomy. 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 . 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. This can, however, redirect semen into the bladder . Some do not use the diapers at all, for arousal, gay cock or bladder and bowel movements.