Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally made pornography designed to appear as if it were amateur. There were also a very limited number of specialist fetish magazines which featured images of bondage, such as the famous Bizarre magazine published from 1946 to 1959 by the pioneering fetish photographer John Willie, and ENEG Exotique magazine, published 1956-1959. Within a BDSM or D/s context, facesitting can be an especially intense form of erotic humiliation. This category also includes pornographic home movies. Cuckold fetish pornography gay movies that involves a cuckolded husband. This can, however, redirect semen into the bladder . For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. In modern BDSM vernacular, the queening stool allows open access to the crotch while seated. 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. Individuals are also sometimes abbreviated when referred to in writing, so a dominant person may be referred to as a Dom for a man, and a Domme for a woman. The scenario is a genre of erotica, which on the internet is sometimes abbreviated to CMNF, and may involve sexual and nonsexual erotic scenarios. The concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct. Heterosexual bareback sex, as opposed to sex with condoms, not only poses an increased risk of STIs, but for pregnancy as well. A variation on this is to place the fingers and thumb on the penis as if playing a flute, and then shuttle them back and forth. Simultaneous penetration of the mouth and either the vagina or anus. Since development hentai videos and pronunciation of the momsex buttocks begins at menarche and declines with age, full buttocks are also a symbol of youth.