In the gay pornography industry, which uses amateurs as well as professional actors, the term gay-for-pay refers to actors labeled or believed to be straight but who engage in same-sex sexual activities for money. Studies have lesbian hentai found that masturbation is frequent in humans of both sexes and all ages, although there is variation. People may experience pleasure from anal sex by stimulation of the anal nerve endings, and orgasm may be achieved through anal penetration – by indirect stimulation of the prostate in men, indirect clitoral/G-spot stimulation in women, and associated sensory nerves . Gonzo pornography is a style of pornographic film that attempts to place the viewer directly into the scene. Bear features a combination of middle-aged, hairy or overweight males. Pantyhose/Tights/Stockings pornography involves women or men dressed in pantyhose, tights, or stockings. Some pornographic films use an artificial semen substitute to simulate or enhance creampie shots. Such works have also often been subject to censorship and other legal restraints to publication, display or possession. Top and dominant are widely recognized for those partner in the relationship or activity who are, respectively, the physically active or controlling participants. In Japanese, the term describes any type of perverse or bizarre sexual desire or act; it does not represent a genre of work. Yaoi is anime or manga gay twinks that features gay males . 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. In Japan, point horny milfs of view pornography is referred to as hamedori . Today, religions vary in their views of masturbation; some view it as a spiritually detrimental practice, some see it as not spiritually detrimental, and others take a situational view. Erotic spankings are commonly combined with other forms of sexual foreplay. 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.