The 1979 U. The first pegging scene appears to have been in the non-pornographic 1970 film Myra Breckinridge, based on the novel of the same name by Gore Vidal, although it was not explicit. Cum-shot pornography features a collection of male ejaculation scenes. Rough sex pornography is similar to pornography featuring sadomasochism, and typically features a Top who humiliates and/or degrades a Bottom while being physically violent towards them. As with most forms of sexual activity, anal sex participants risk contracting sexually transmitted infections . Interracial pornography typically employs ethnic and racial stereotypes in its momsex depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation of actors by race has diminished considerably. 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 anime hentai male sees the female as a castrated male, seeing missing parts rather than a different anatomy. It may be used as foreplay, or as an alternative to sexual penetration. Spanking or whipping pornography involves spanking or whipping, generally of the buttocks, with the hand or with other objects such as belts, switches, paddles, brushes, or whips. This category also includes pornographic home movies. Making a pearl necklace is one of the activities that sex workers use as safe sex alternatives for people who refuse to wear condoms. The most common depiction of a hermaphrodite is a person with a female face, breasts, and build, and a penis , although there are other combinations. Group sex can occur between people of all sexual orientations and genders. Interracial pornography typically employs ethnic and racial stereotypes in its depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation gay boy porn of actors by race has diminished considerably. Going back at least as far as the Christy twins in the 1970s, depictions of incest and particularly incest between twins has been a feature of gay pornography.