It has since become popular enough with couples to be discussed during an episode of Sex and the City. Scat or brown pornography features defecation, manipulation of feces, or consumption of feces, in reality or fantasy; a well-known example is the 2 Girls 1 Cup video. The queening stool is also related to a smotherbox, which also allows the person under the seat to be locked in place, restrained by the neck as in a set of stocks. Threesome or 3some pornography features one man and two women . Rubber pornography involves rubber, latex, and similar materials. In the Diagnostic and Statistical Manual of Mental Disorders , published by the American Psychiatric Association, it is classified under 302.89 – Paraphilia NOS and has no diagnostic criteria other than a general statement about paraphilias that says the diagnosis is made if the behavior, sexual urges, or fantasies cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. Typically, fisting does not involve forcing the clenched fist into the vagina or rectum; this is a practice called punching. Biological anthropologist Helen B. In Japan, point of view pornography is referred to as hamedori . Bra pornography involves women or gay hentai men dressed in bras. Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. Drama lesbian milfs Hardcore showed this kind of film on its film. A celebrity can fight the release in court to maintain deniability while still enjoying the career benefits. A bisexual threesome may involve a man having sex with a man and a woman, the woman having sex with a man and a woman, or all three having sex with each other. Being forced to wear diapers as a form of humiliation is sometimes a behavior encountered in sexual masochism. Locks may be used to emphasize the submissive position or the submissive hands may be fastened above his head to the box. Cartoon pornography depicts illustrated or animated gay movies fictional characters in erotic and sexual situations.