A gaysex pornographic work is characterized as hardcore if it has any hardcore content, no matter how small. As of 2013, little analysis of this paraphilia has been reported in medical literature. The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed. This industry employs thousands of performers along with support and production staff. 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. Some women who engage in same-sex sexual activity may reject not only identifying as lesbians but as bisexual as well, while other women self-identification as lesbian may not align with their sexual orientation or sexual behavior; sexual identity is not necessarily the same as one sexual orientation or sexual behavior, due to various reasons, such as the fear of identifying their sexual orientation in a homophobic setting. Examples of heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. In modern BDSM vernacular, the queening stool allows open access to the crotch while seated. BDSM communities generally welcome anyone with a non-normative streak who identifies with the community; this may include cross-dressers, extreme body mod enthusiasts, animal players, gay cock latex animated porn or rubber aficionados, and others. Pornography is often referred to as porn and hentai movies a pornographic work as a porno. These agreements are binding in the sense that the parties have the expectation that the negotiated rules will be followed. Films with risqué naked celebrities content commenced momsex to be produced soon after the invention of the motion picture in the 1880s.