If one person is penetrated by two objects, it is generically called double penetration . Adult animation is genre of animation geared towards adults and sometimes teens. They may regard it as an enhancing element of their sex lives or as their primary form of sexual activity. The term combines elements of the Freudian psychoanalytic fetish and the Marxist commodity fetish, and is used in the context of British, Spanish and French colonialism and imperialism and their aftereffects. It is geared towards heterosexual men, who most typically define a threesome as such. Use of the agreed safeword is seen by some as an explicit withdrawal of consent. It has also been recommended as a form of foreplay or safer sex. This can, however, redirect semen into the bladder hentai movies . The industry generally refers to such films as adult films, which is part of adult entertainment. They further argue that setting a discrete line between safe and not-safe activities ideologically denies consenting adults the right to evaluate risks vs rewards for themselves; that some adults will be drawn to certain activities regardless of the risk; and that BDSM play—particularly higher-risk play or edgeplay—should be treated with the same regard as extreme sports, with both respect and the demand that practitioners educate themselves and practice the higher-risk activities to decrease risk. Diaper pornography involves performers wearing diapers, sometimes with an adult performer acting in the role of a caretaker. Foot momsex fetishism has been defined as a pronounced sexual interest in the feet or footwear. 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. Macrophilia is a fascination with or gay bear porn a sexual fantasy involving giants, more commonly expressed as giantesses . Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. For some people, non-penetrative sex is the primary sexual activity of choice above all others.