But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period. Often a dominant woman, she may be called a Dom, Domme /ˈdɒm/, Femdomme, Domina, or Dominatrix, depending on context or personal preference. One or more of the participants may engage in autoerotic sexual activity, such as masturbation, possibly without physical contact with the other participants. Women in homosexual relationships responded to this designation either by hiding their personal lives or accepting the label of outcast and creating a subculture and identity that developed in Europe and the United States. 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. Unlike erotic films, pornographic films contain explicit sexuality and do not claim any artistic merit. For uncircumcised males, stimulation anime hentai of the penis in this way comes from the pumping of the foreskin, in which the foreskin is held and slid up and down over the glans, which depending on foreskin length, is completely or partially covered and then uncovered in a rapid motion. Each participant may engage in any type of sex acts with one or both of the others, such as vaginal, anal or oral sex or mutual masturbation. Some restrict a policy of panties/nipple tape for females and some allow full nudity with explicit sexual interaction allowed. Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally made pornography designed to appear milf xxx as if it were amateur. Body parts including fingers, tongue and penis may be used for anonymous oral, vaginal and/or anal intercourse. First found in softcore movies and erotic thrillers, depictions of lesbianism entered mainstream cinema in the 1980s. Arousal may be triggered by seeing gaysex the body movements or facial expressions of that person.