A homosexual threesome would involve either three men or three women. It spawned numerous sequels, hentai porn several of which won adult film awards. Double Stuffed , Double Vaginal , or Double Anal pornography involves the penetration of one orifice by two penises or other objects. Stimulating the prostate from outside, gay movies via pressure on the perineum, can be pleasurable as well. The phrase is commonly found on porn sites. Comic books often featured characters being tied up and tying others up, particularly in damsel in distress plots. Even though the performers who perform in these films typically appear on many reality websites within a short span of time, most of these websites claim that each of them is an amateur. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. Bara male homosexual hentai designed to appeal to men. If dramatic big tit milf skills are not involved, a performer in a porn film may also be called a model. Although interracial pornography theoretically can apply to depictions of sexual activity between performers of any different racial groups, the term is most commonly used for heterosexual sex acts between black and white performers. Female dominance refers to BDSM relationships and BDSM scenes in which the dominant partner is female. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just before ejaculating. Mammary intercourse is a sex act, performed as foreplay or as non-penetrative sex, that involves the stimulation of the male penis by the female breasts and vice versa. Since the 1980s, many practitioners and organizations have adopted the motto safe, sane and consensual, commonly abbreviated as SSC, which means that everything is based on safe activities, that all participants be of sufficiently sound/sane mind to consent, and that all participants do consent. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed.