Buttocks are sometimes emphasized in pornography, where they are often referred to as booty. They may be noted for using anime hentai risqué themes, graphic violence, sexuality or black comedy in a manner that is unsuitable for younger audiences. Ass to mouth is a slang term primarily used to describe the withdrawal of a penis from the receptive partner anus followed by the immediate insertion into the receptive partner mouth. Typically featured are hitting, choking, name-calling and hair-pulling. Hermaphrodite, also known as herm, refers to pornography, typically hentai, that features gay cock persons with the genitalia of both sexes. The term comes from the French voyeur, one who looks. Gay pornography is the representation of sexual activity between males. Some anthropologists and sociobiologists believe that breast fetishism derives from the breasts similarity to buttocks, but instead provide sexual attraction from the front of the body. Some pornographic films use an artificial semen substitute to simulate or enhance creampie shots. The most common type of erotic spanking is administered on the bare buttocks, but can also be combined with bondage, in order to heighten sexual arousal and feelings of helplessness. Kurt Wild, who appeared as a bottom in Lucas Entertainment Gigolos, is married to a woman and has three children. Foot fetishism has been defined as a pronounced sexual interest in the feet or footwear. Macrophilia is a fascination with or a sexual fantasy involving giants, more commonly expressed as giantesses . Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. Sigmund Freud considered foot binding as a form of fetishism. The first explicit pegging scene is believed to have been in the 1975 pornographic film The Opening of Misty Beethoven. Participants who exert sexual control over their partners are known as dominants or tops while participants who take the passive, receiving, or obedient role are known as submissives momsex or bottoms.