Hardcore pornography is pornography that depicts penetration or extreme fetish acts, or both. Rainbow party A rainbow party is an urban legend spread from the early 2000s. The act may be carried out face to face, or head to tail, with the woman recommended to be on top if she has smaller breasts. The term sadomasochism is derived from the words sadism and masochism . They may regard it as an enhancing element of their sex lives or hentai porn as their primary form of sexual activity. Sub-genres can also be classified into the characteristics of the performers or the type of sexual activity on which it concentrates, and not necessarily on the market to which each sub-genre appeals. 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. People may experience pleasure from anal sex by stimulation of the anal nerve endings, and orgasm may be achieved through anal penetration – by indirect stimulation of the prostate in men, indirect clitoral/G-spot stimulation in women, and associated sensory nerves . Voyeur pornography may also include shots of topless women on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting. Since mammary intercourse is a non-penetrative sex act, the risk of passing a sexually transmitted infection that requires direct contact between the mucous membranes and pre-ejaculate or semen is greatly reduced. Barebacking usually refers to a conscious and deliberate choice to forgo condoms. Diaper hot gay sex fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it. Bondage websites and bondage imagery in mainstream momsex pornography As of 2003, specialist bondage magazines were mostly displaced by the availability of bondage material on the World Wide Web, and the presence of bondage imagery in mainstream pornographic magazines such as Nugget and Hustler Taboo magazine.