Such documents have not been recognized as being legally binding, nor are they intended to be. Works in this genre may explore philosophical, political or social issues. Group sex pornography features at least two men and two women , usually more, who all perform sex acts on each other. Diaper fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it. The study also found that participants reacted positively to a much wider range of figures than a control group, even rating emaciated figures higher. The neologism pegging was popularized when it became the winning entry in a contest in Dan Savage Savage Love sex advice column, held after an observation was made that there was no common name for the act. Perhaps following the example set by gay pornography, they have become a popular subgenre within heterosexual pornography since the turn of the century, featuring both vaginal and anal ejaculations. Kurt Wild, who appeared as a bottom in Lucas Entertainment Gigolos, is married to a woman and has three children. Studies have found that masturbation is frequent in humans of both sexes and all ages, gay sex video although there hentai porn is variation. The warm sensation felt when urine trickles on the body seems to give very relaxing and pleasurable feelings to the person. Interactive pornography, available in CD-ROM and DVD format, allows the viewer to select the particular acts latest celebrity news performed at any one time, sometimes with the camera providing a first person view. Mammary intercourse is known as titty-fucking, titfuck, or a titjob in the United States, as well as tit wank or French fuck in the United Kingdom - the latter term dating back to the 1930s; while a more jocular equivalent is a trip down mammary lane. The industry generally refers to such films as adult films, which is part of adult entertainment. The queening stool is also related momsex to gay group sex 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.