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. There is a substantial amount of incest pornography on the Internet, leading some to argue it may legitimize or encourage real-life incest. BDSM has become an umbrella term for certain kinds of erotic behavior between consenting adults. Some diaper wearers wear their diapers for limited amounts of time, while others prefer to wear them on a 24-hour, seven-day schedule. The Japanese sex industry uses the term Paizuri . Weather Report Girl is considered yuri hentai in English usage for its depiction of lesbian sex, but in Japan it is just yuri. Hamedori-type videos were produced gay cock from the beginnings of Japanese AV in the early 1980s. Explicit sexual activity, such as sexual penetration, may occur within a session, but is not essential. Facesitting when a woman or a young girl sits on a man face. They may repeat momsex this cycle multiple times. Fisting may be performed with or without a partner. Softcore pornography generally contains nudity or partial nudity in sexually suggestive situations, but without explicit sexual activity, sexual penetration or extreme fetishism, while hardcore pornography may contain graphic sexual activity and visible penetration, including unsimulated sex scenes. Well-known female porn stars who expressed their pleasure in pegging their male partners include Taylor Wane, Debi Diamond, Brittany Andrews, and Monique Covét. Similar to Freud idea of a fetish, Bhabha defines racial fetish to be a fixation on other races being not different, but lesser or mutilated versions of the white male. A smotherbox has two openings. Kinbaku is a Japanese style of bondage or 3d hentai BDSM which involves tying up the bottom using simple yet visually intricate patterns, usually with several pieces of thin rope . Freud, however, considered such extensions of sexual interest to fall within the range of the normal, unless marked out by exclusivity .