Through the 1990s, mainstream movie and television actors have been more willing to portray homosexuality, as the threat of any backlash against their careers has lessened and society acceptance of gay and lesbian people has increased. The interaction between tops and bottoms—where physical or mental control of the bottom is surrendered to the top—is sometimes known as power exchange, whether in the context of an encounter or a relationship. Foot fetishism, foot partialism, foot worship, or podophilia is a pronounced sexual interest in feet. It may involve sexual attraction to women who are pregnant or hentai movies appear pregnant, attraction to lactation, or attraction to particular stages of pregnancy such as impregnation or childbirth. Yuri is the lesbian equivalent. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. 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. Contact mutual masturbation One person touching another person to masturbate. As observation is encouraged, voyeurism and exhibitionism are closely associated with dogging. Individuals who can change between top/dominant and bottom/submissive roles—whether from relationship to relationship or within a given relationship—are known as switches, though the term switch in this context is occasionally seen as derogatory and is rejected by many who might simplistically gay sex video fit the definition. Transwomen are most often featured with male partners, horny milfs but are also featured with other transsexuals or cissexual women. Interracial pornography typically employs ethnic and racial stereotypes in its depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation of actors by race has diminished considerably. The effect is to give the viewer the sense that they are experiencing the sex acts that they are watching, as opposed to simply watching others as a voyeur.