The term shemale has been used since the mid-19th century, when it was a humorous colloquialism for female, especially an aggressive woman. Not all crush fetishists are that extreme! The Japanese sex industry uses the term Paizuri . The term hamedori came into use about 1988–1989, but it was only a small niche area until it was popularized at V&R Planning by director Company Matsuo. Practitioners have described going to public places such as a mall or a park. Most consumers of bisexual pornography do not identify as gay. Challenged on two fronts – by anti-pornography feminists and by the traditional male double-standard – sex-positive feminists would sometimes seek for tactical reasons to distinguish erotica from porn - with the latter conventionally seen as both boring and disturbing. For example, the Kama Sutra, in particular, goes into specific detail on how to properly strike a partner during sex. Accepting that Eros is not always pretty, and may involve the forbidden or taboo - as with women pornography – forms part of the struggle with the good girl/bad girl or virgin-whore split in postmodern femininity. Gonzo porn is influenced by amateur pornography, and it tends to use far fewer full-body/wide shots in favor of more close-ups . Fat fetishism also incorporates stuffing and padding, whereas the focus of arousal is on the sensations and properties of a real or simulated gain. In a bath or shower a female may direct tap water at her clitoris and vulva. It can also be heightened by the person saying that they have to urinate. Often, slave contracts are set out in writing to record the formal consent of the parties to the power exchange, stating their common vision of the relationship dynamic. Hamedori-type videos were produced from the beginnings nude milfs of Japanese AV in the early 1980s. Female-to-male strap-on pornography hentai sex became a popular sub-genre in the United States in the early 21st century, with a number of studios producing dedicated series about it. Common phrases used to refer to these individuals are chicks with dicks, trannies, or shemales, although these are generally considered gay twinks pejorative slurs among transwomen.