Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person anus, or anus and rectum, for sexual pleasure. This is commonly called double anal or double stuffing. Bottom and submissive are widely recognized terms for those partner in the relationship or activity who are, respectively, the physically receptive or controlled participants. Performers are usually clean-shaven, thinner and more effeminate than ones in mainstream gay pornography. These scenes may either 3d hentai have the cameraman directly engaging in sex or merely filming others having sex. The buttocks in human females thus contain more adipose tissue than in males, especially after puberty. There may be more than two participants; both group sex and gang banging can be included. The interaction between tops and bottoms—where physical or mental control of the bottom is surrendered to the top—is sometimes known as power exchange, whether in the context of an encounter or a relationship. The term hentai is never used in this context in Japanese. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just momsex before ejaculating. In September 2003 the BBC reported on the new dogging craze. This is why video stores might consider stocking transgendered subject matter in the straight section, as some straight men will have passive or active sex with another man as long as their partner appears to look like a woman to them, to some minor or major degree. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. Sometimes special furniture is used, such as a queening stool or smotherbox. The sub-genres usually conform to certain conventions, and each may appeal to a particular audience. When sexual activity is centered on one of the threesome, then the activity may be described as a gay sex video gang bang of the person. Klaw ran an international mail-order business out of his store, Movie Star News, selling cheesecake pinups and bondage/spanking photos.