Both sexes sometimes apply lubricating substances to intensify sensation. Specific sex acts Anal Anal pornography features anal penetration with a penis, dildo, other objects, or some combination of them. Hermaphrodite, also known as herm, refers to pornography, typically hentai, that features persons with the genitalia of both sexes. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. The range of its individual characteristics is thereby wide. Sadomasochism is practiced in isolation relatively rarely, though some masochists report biting, pinching, or even stun-gunning themselves as a prelude to, or gay twinks as part of, masturbation. Women who perform in lesbian momsex pornography often do not consider themselves lesbian or bisexual. Compensating elements of the total dominance and submission are care and devotion complementing one another, thus facilitating stable relationships. Many cultures describe pain as an aphrodisiac. 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. Pornography in Japan is large and intertwined business of adult entertainment with unique characteristics that readily distinguish it from western pornography. Women oriented pornography is sometimes referred to as sex positive pornography. The arousal from being desperate comes from the sensation of having a full bladder. Common positions include lying on back or face down, sitting, squatting, kneeling or standing. Real medical shots or videos may violate privacy laws in some countries. The use of the word creampie to describe such scenes originated in hentai videos U. Yaoi is anime or manga that features gay males . The name is a reference to gonzo journalism, in which the reporter is part of the event taking place.