Bondage/BDSM Bondage pornography features performers tied up or gay movies constrained in various ways. Pornographic films are typically categorized as either softcore or hardcore pornography. Oral sex pornography frequently features a person performing fellatio, and less frequently cunnilingus. In POV porn, the shooting style is generally similar to gonzo pornography, with the person receiving sexual gratification lesbian milfs holding the camera him or herself—aiming it down at the actress or actor who is performing the sex act. This type of pornography is almost exclusively hentai, as true hermaphroditic humans are not fertile and are not usually found in nature. Transgender pornography features performers who cross-dress for sexual gratification, either for themselves or for their partners. The name was coined from the title of the controversial book. Diaper fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it. Double penetration of the vagina, anus and mouth, can involve: Simultaneous penetration of the anus by two penises or other objects. 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. Bear features a combination of middle-aged, hairy or overweight males. Some people get sexual pleasure by inserting objects, such as urethral sounds, into the urethra , a practice known as urethral play or sounding. Because the viewing of such films carried a social stigma, they were viewed at brothels, adult movie theaters, stag parties, at home, in private clubs and also at night cinemas. The cover can have hinges or anime hentai be a separate part. Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. Particular areas and processes of the body that change during pregnancy may also become the focus of psychological investment, but nudity or sexual activity is not always essential, and in some cases actual pregnancy is not necessary to invoke arousal.