This technique may include the use of a simulacrum, or artificial vagina. Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well. The term lesbian is also used with regard to sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexuality or same-sex attraction. Shibari is a Japanese word that literally means to tie or to bind. The work of Bruce Seven has been called reality porn, due to his lack of using scripts and asking his performers to act naturally in their own character. The stigma of being gay or labeled as such has steadily eroded since the Stonewall riots began the modern American gay rights movement in 1969. It spawned numerous sequels, several of which won adult film awards. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed. As of 2013, little analysis of this paraphilia has been reported in medical literature. Mammary intercourse is said by Alex Comfort to produce mutual orgasm in women with sensitive breasts , and gay bear porn it was one of the nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903. The prostate gland is one of the organs that contributes fluid to semen. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man. The term hentai is never used in this context in Japanese. Some BDSM practitioners hentai porn prefer a code of behavior that differs from SSC and is described as risk aware consensual kink , indicating a preference for a style in which the individual responsibility of the involved parties is emphasized more strongly, lesbian milfs with each participant being responsible for his or her own well-being. The term Asiaphile is sometimes used to describe the same phenomenon as is yellow fever . The person receiving anilingus is regarded as the passive partner in the act, and the person performing anilingus is the active partner.