In addition to mainstream pornography, the popularity of facials has led to creation of its own niche market, hot gay sex like video series that specialize in showing the act. Well-known female porn stars who expressed their pleasure in pegging their male partners include Taylor Wane, Debi Diamond, Brittany Andrews, and Monique Covét. 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. Sex experts have praised various techniques that the performer can use during fellatio to increase their partner pleasure. Gloryhole pornography features women performing fellatio on unidentified men through a small hole made in a bathroom divider. Transsexual pornography features transwomen performers, who typically have male genitalia and augmented female breasts . A celebrity may allow such a recording to surface willingly, as part of a publicity stunt. First found in softcore movies and erotic thrillers, depictions of lesbianism entered mainstream porn milf cinema in the 1980s. Facial cum shots are currently hentai movies regularly portrayed in pornographic films and videos, often as a way to close a scene. Can also include auto-fellatio, or performing oral sex on oneself. Pornographic films present sexual fantasies and usually include erotically stimulating material such as nudity. This category also includes pornographic home movies. Some actors who are actually gay or bisexual will be marketed as straight to appeal to the allure of the unattainable, because straight men are virgins to sex with other men, and as in most gay male settings, the young, the muscular, and the unfamiliar are more sought.. This may relate to fetishes such as voyeurism or cuckolding. In recent years, Japanese films of this genre have become more common in the USA and Europe although it still remains a small, fetish-oriented part of the adult film industry. Bobbi S. Performers are usually clean-shaven, thinner and more effeminate than ones in mainstream gay pornography.