Another naked celebrities variant of reality pornography consists of normal couples that are filmed by professionals, in which case the only obvious distinction from amateur pornography is the higher quality of production, filming and editing. Enema pornography involves adults given enemas to others, often fake. The related term twinkle-toes, which implies that a man is effeminate, tends to be used in a derogatory manner. These scenes may either have the cameraman directly engaging in sex or merely anime hentai filming others having sex. It is suggested that much of the obscurity and the uncertainties about female ejaculation are related to mixing up these two phenomena. Emetophilia pornography involving vomiting and gagging. 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. Pornography is often referred to as porn and a pornographic work as a porno. One-sided male nudity can also arise when young gay porn a male disrobes as part of a male striptease. BDSM is a variety of erotic practices celebrity porn involving dominance and submission, role-playing, restraint, and other interpersonal dynamics. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just before ejaculating. Although pornography has usually focused on heterosexuality, due to the prevalence of the heterosexual orientation, explicit gay material has a long history as well, which reaches back to Greek antiquity, if not to prehistory. There may be more than two participants; both group sex and gang banging can be included. Unlike the traditional definition of the term, in fetish usage a cuckold is complicit in their partner sexual infidelity and takes masochistic sexual pleasure in it. Bisexual pornography is a genre of pornography which most typically naked milf depicts one woman and two men who all perform sex acts on each other.