Since the 1980s, many practitioners and organizations have adopted the motto safe, sane and consensual, commonly abbreviated as SSC, which means that everything is based on safe activities, that all participants be of sufficiently sound/sane mind to consent, and that all participants do consent. BDSM communities generally welcome anyone hentai videos with a non-normative streak who identifies with the community; this may include cross-dressers, extreme body mod enthusiasts, animal players, latex or rubber aficionados, and others. Films with risqué content commenced to be produced soon after the invention of the motion picture in the 1880s. There has been an increase in discussion and portrayal of masturbation in art, popular music, television, films, and literature. Omorashi: The act of holding one own urine until the need to urinate is urgent, making another hold in their urine, or watching another person with an urgent need to urinate. What seems clear from the historical record is that much of the lesbian material in pornographic texts was intended for a male readership. The existence of such content in commercially available pornography is widely considered an urban legend. It is typically animated pornography, as the legal age to be featured in a pornographic film in Japan is 18. Pornography may fall into more than one genre. Female dominance refers to BDSM relationships and BDSM scenes in which the dominant partner is female. A crush fetish is a fetish in which one is sexually aroused usually when someone crushes objects, food, and sometimes small animals with their body, usually under their foot, or when crushed oneself. The Silent Duck, also called Duck-Billing, is the technique often used in which the person engaging in hand insertion shapes the hand gay sex video to resemble a duck beak. Typically featured are hitting, horny milfs choking, name-calling and hair-pulling. The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist.