Can also include auto-fellatio, or performing oral sex on oneself. The sub-genres usually conform to certain conventions, and each may appeal to a particular audience. Guro or Gore is a genre of Japanese pornography involving blood, gore, disfiguration, violence, mutilation, urine, enemas, or feces. These scenes may either have the cameraman directly engaging in sex or merely filming others having sex. To tea bag is a slang term for the sexual act of a man placing his scrotum in the mouth of a willing sexual partner for pleasure or onto the face or head of another person. The stimulation may involve hands, fingers, everyday objects, sex toys or combinations of these. Fisting pornography features big tit milf the insertion of an entire hand into a performer vagina or anus. It spawned numerous sequels, several of which won adult film awards. The term discipline describes psychological restraining, with the use of rules and punishment to control overt behavior. In pornography, depictions of lesbian sex form a popular subgenre, directed toward a male heterosexual 3d hentai and female homosexual audience. Pornography is generally classified as either softcore or hardcore pornography. 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. Transsexual people Transman pornography features performers who were born female and who medically transitioned to male. Clothed gay bear porn female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. As in B/D, the declaration of the Top/Bottom may be required, though sadomasochists may also play without any Power Exchange at all, with both partners equally in control of the play. Shemale is a term primarily used in sex work to describe a trans woman with male genitalia combined with female secondary sex characteristics, usually including augmented female breasts, from breast augmentation and/or use of hormones.