Men may find stimulation of the anus, rectum, hentai movies and adjacent organs enjoyable. Bottom and submissive are widely recognized terms for those partner in the relationship or activity who are, respectively, the physically receptive or controlled participants. Both sexes sometimes apply lubricating substances to intensify sensation. Pregnancy fetishism is a context where pregnancy is seen by individuals or cultures as an erotic phenomenon. Women who perform in lesbian pornography often do not consider themselves lesbian or bisexual. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. Such explicit sexual interaction is seen only rarely in public play spaces, and it is sometimes specifically banned by the rules of a party or playspace. Pussing: British expression for an activity involving a consenting couple where the male partner watches the woman urinate otherwise undetected in a semi-public place, usually a toilet cubicle at a pub, hotel, restaurant, theatre/cinema, office, club etc. Most soft crush fetishists avoid being placed under the same label as hard crush fetishists, believing videos gays that crush films with larger animals give the entire group a bad label. In S/M, the Sadist is usually the Top and the Masochist the Bottom, but these roles are frequently more complicated or jumbled . Starting with erotic stories and woodblock prints from before the 20th century, Japanese pornography evolved into distinct subcategories with the media that in addition of pornographic videos and magazines featuring live actors, there is exist categories of pornographic mature milfs manga , pornographic computer games , and pornographic anime . Pornography is often distinguished from erotica, which consists of the portrayal of sexuality with high-art aspirations, focusing also on feelings and emotions, while pornography involves the depiction of acts in a sensational manner, with the entire focus on the physical act, so as to arouse quick intense reactions.