Such grounds and even the definition of pornography have differed in various historical, cultural, and national contexts. Those with diaper-related paraphilias differ widely in their focus gaysex of attention. Cartoon pornography depicts illustrated or animated fictional characters in erotic and sexual situations. For a foot fetishist, points of attraction include the shape and size of the foot and toes , jewelry , treatments , state of dress , odor, and sensory interaction . These actors often play the top roles but this is not always the case, such as with Kristen Bjorn and some Bel Ami models. Production of such films was hentai movies profitable, and a number of producers specialised in their production. Some POV/gonzo porn sometimes breaks the strict point-of-view convention. Sadism describes sexual pleasure derived by inflicting pain, degradation, humiliation on another person or causing another person to suffer. These are often fake. Exhibitionism: Becoming noticeably desperate or wetting oneself with the express purpose of being seen by strangers. Testosterone discourages fat storage in these areas. Women who adopt a lesbian identity share experiences that form an outlook similar to an ethnic identity: as homosexuals, they are unified by the heterosexist discrimination and potential naked milf rejection they face from their families, friends, and others as a result of homophobia. Threesome or 3some pornography features one man and two women . Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs. In a few relationships, it leads as far as total submission of one partner in the truest sense of the phrase total power exchange . Reality and voyeur pornography, animated videos, and legally prohibited acts also influence the classification of pornography. However, various groups within society considered such depictions immoral, labelling them pornographic, and attempting to have them suppressed under obscenity laws, with varying degrees of success.