A variant of this is known as ATOM or ATOGM where the insertive partner removes his penis from one recipient anus and inserts it into a second recipient mouth. Performers are usually clean-shaven, thinner and more effeminate than ones nude milfs in mainstream gay pornography. Voyeur or peeping Tom pornography is usually more staged with the subjects aware of the cameras, sometimes openly including this exhibitionist awareness. Amateur porn has been called one of the most profitable and long-lasting genres of pornography. Unlike erotic films, pornographic films contain explicit sexuality and do not claim any artistic merit. The sub-genres usually conform to certain conventions, and each may appeal to a particular audience. Mammary intercourse is said by Alex Comfort to produce mutual orgasm in women with sensitive breasts , and it was one of the anime hentai nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903. A common way that these are depicted in a single scene is with one woman and two men performing together. Actors are mostly amateur; any well-known actors in bisexual porn tend to be from the gay pornography industry. It can be combined with fellatio and the woman may move her breasts up and down on the penis for an additional stimulation, usually before the man reaches orgasm. Unlike the traditional definition of the term, in fetish usage a cuckold is complicit in their partner sexual infidelity and takes masochistic sexual pleasure in it. Matsuo used amateur actresses in his videos, and he usually traveled to their hometowns for gay sex video the filming. As in B/D, the declaration of the Top/Bottom may be required, though sadomasochists may also play without any Power Exchange at all, with both partners equally in control of the play. As amateurs in a single segment of a multi-part video, the actresses are typically paid only about 50,000 yen . Hugo Ohira, director of marketing for Silvercash, rhetorically asks Who does not like spewing their load on a pretty young face?