Adult animation is genre of animation geared towards adults and sometimes teens. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive. The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. Oral sex pornography frequently features a person performing fellatio, and less frequently cunnilingus. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man. This fetish sometimes originates from childhood memories of needing, or of seeing another needing, to urinate. BDSM actions can often take place during a specific period of time agreed to by both parties, referred to as play, a scene or a session. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease. For much of the history of cinema and television, lesbianism was considered taboo, though since the 1960s it has increasingly become a genre in its own right. The definition clash also appears with the English definition of gay bear porn yuri as any lesbian relationship, as opposed hentai movies to its sexually explicit definition in Japan. The term hentai is never used in this context in Japanese. Foot fetish pornography features heavy emphasis on the feet of the participants, either in combination with kissing and genital sex or in the context of acts such as trampling or crush fetishism. The rise of the Internet in the late 1990s and early 2000s similarly changed the way pornography film was distributed and furthermore naked milf complicated the censorship regimes around the world and the legal prosecution of obscenity. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. It is suggested that much of the obscurity and the uncertainties about female ejaculation are related to mixing up these two phenomena. In more vigorous forms of fisting, such as punching or punchfisting, a fully clenched fist may be inserted and withdrawn slowly.