There has been an increase in discussion and portrayal of masturbation in art, popular music, television, films, and videos gays literature. Use of the agreed safeword is seen by some as an explicit withdrawal of consent. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. Likewise, Fox Broadcasting Company has also dedicated an entire evening programming block to adult animation programs, known as Animation Domination. In Japanese, this natural-fibre rope is known as asanawa; the Japanese vocabulary does not make a distinction between hemp and jute. Interactive pornography, available in CD-ROM and DVD format, allows the viewer to select the particular acts performed at any one time, sometimes with the camera providing a first person view. Real medical shots or videos may violate privacy laws in some countries. Bukkake is a sex act portrayed in pornographic films, in which several men ejaculate on a woman, or another man. Both forms of pornography generally contains nudity. Hardcore pornography is pornography that depicts penetration or extreme fetish lesbian hentai acts, or both. Kurt Wild, who appeared as a bottom in Lucas Entertainment Gigolos, is married to a woman and has three children. The most common type of erotic spanking is administered on the bare buttocks, but can also be combined with bondage, in order to heighten sexual arousal and feelings of helplessness. Films with risqué content commenced to be produced soon after the invention of the motion picture in the 1880s. Transgender pornography features performers who cross-dress for sexual gratification, either for themselves or for their partners. Sub-genres can also be classified into the hentai porn videos characteristics porn milf 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. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive.