John Stagliano is considered to have started the gonzo pornography horny milfs genre with his Buttman series of films. Behind the Green Door was one of the first pornographic films to feature sex between a white actress with a black actor . Additionally, the buttocks give an indication of the shape and size of the pelvis, which impacts reproductive capability. New York photographer Irving Klaw also published illustrated adventure/bondage serials by fetish artists Eric Stanton, Gene Bilbrew, Adolfo Ruiz and others. Clothed female, naked male pornography features naked men and hentai porn clothed women; typically, the women humiliate and abuse the men or perform fellatio and/or handjobs on the men. Following World War II, during a period of social repression when governments actively persecuted homosexuals, women developed networks to socialize with and educate each other. In POV porn, the shooting style is generally similar to gonzo pornography, with the person receiving sexual gratification holding the camera him or herself—aiming it down at the actress or actor who is performing the sex act. Many fantasies include the macrophile shrinking before a normal sized woman or keeping his or her normal height while the partner grows in size. Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. Exhibitionism: Becoming noticeably desperate or wetting oneself with gay sex video the express purpose of being seen by strangers. The term BDSM dates back to 1969; however, the origin of the term BDSM is unclear and is believed to have been formed either from joining the term B&D with S&M , or as a compound initialism from B&D, D&S , and S&M. This is commonly called double vaginal penetration or double stuffing. Often other friends and community members may witness the signing of such a document in a ceremony, and so parties violating their agreement can result in loss of face, respect or status with their friends in the community. Content featuring male bisexuality has been a growing trend since the advent of internet pornography.