Hermaphrodite, also known as herm, refers to pornography, typically hentai, that features persons with the genitalia of both sexes. The cover can have hinges or be a separate part. The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. The current public acceptance of celebrities with sex tapes is speculated by Joe Levy, executive editor of Rolling Stone, to be due to the easy availability of pornography, as well as couples more commonly making their own tapes due to the prevalence of video cameras. The existence of such content in commercially available pornography is widely considered an urban legend. 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. Boots are seen as the perhaps most fetishistic of all footwear and boots may be the most popular fetish clothing attire. Pornography may fall into more than one genre. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. Bear features a combination of middle-aged, hairy or overweight males. Some masturbate only using pressure applied to the clitoris without direct contact, for example by pressing the palm or ball of the hand against underwear or other clothing. Bukkake pornography involves a performer, usually female, onto whom several men or women gay bear porn ejaculate, usually on the face. A scene where many women have sex with one man hentai porn is referred to as a reverse gang-bang. Irrespective of the legal or social view of pornography, it has been used in a number of contexts. Patricia Hill Collins, an African-American writer, theorizes that this is derived from momporn a stereotype that those of black descent are promiscuous, and their buttocks are objectified by porn as a result. The act may be carried out face to face, or head to tail, with the woman recommended to be on top if she has smaller breasts.