The term combines elements of the Freudian psychoanalytic fetish and the Marxist commodity fetish, and is used in gay hentai the context of British, Spanish and French colonialism and imperialism and their aftereffects. Sub-genres can also be classified into the characteristics of the performers or the type of sexual activity on which it concentrates, and not necessarily on the market to which each sub-genre appeals. Is also common of the furry genre. Double Stuffed , Double Vaginal , or Double Anal pornography involves the penetration gay bear porn of one orifice by two penises or other objects. 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. Irrespective of the legal or social view of pornography, it has been used in a number of contexts. In the fetish cuckolding subculture, it is most common for the female to take on the sexually dominant role and porn milf the male the submissive role, however, female subs, sometimes referred to as cuckqueans, also exist. The reverse of this, in which nude women interact with clothed men, is called Clothed male, naked female . Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. Both sexes sometimes apply lubricating substances to intensify sensation. Hamedori is a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. This is commonly called double vaginal penetration or double stuffing. What seems clear from the historical record is that much of the lesbian material in pornographic texts was intended for a male readership. The most common male masturbation technique is simply to hold the penis with a loose fist and then to move the hand up and down the shaft. Testosterone discourages fat storage in these areas. Foot fetishism has been defined as a pronounced sexual interest in the feet or footwear.