The term combines elements of the Freudian psychoanalytic fetish and the Marxist commodity fetish, and is used in the context of British, Spanish and French colonialism and imperialism and their aftereffects. Evolutionary psychologists suggest that rounded buttocks may have evolved to be desirable trait because they provide a visual indication of the woman youth and fertility. Voyeur pornography may also include shots of topless women on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting. The full-weight body-pressure, moisture, sex odors and darkness can be perceived as powerful sexual attractions or compulsions. The other person may do the same hentai movies during or after. It is used, for example, at fertility clinics to stimulate sperm donors. For instance, Amateur Allure has a trademark shot where the sexually performing cameraman circles a handycam around the sexually performing model head. John Stagliano is considered to have started milf xxx the gonzo pornography genre with his Buttman series of films. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face. BDSM communities generally welcome anyone with a non-normative streak who identifies with the community; this may include cross-dressers, extreme body mod enthusiasts, animal players, latex or rubber aficionados, and others. Female ejaculation is the expulsion of fluid by the paraurethral ducts through and around the human female urethra during or before an orgasm. Many cultures describe pain as an aphrodisiac. Clothes wetting: The person is sexually aroused by wetting one clothing or observing another person doing so. Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. Entacle erotica describes a type of pornography most commonly found in Japan which integrates traditional pornography gay boy porn with elements of bestiality and a fantasy, horror, or science-fiction theme. Femdom features BDSM scenes in which the dominant partner is female.