Men may also rub or massage the glans, the rim of the glans, and the frenular delta. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings. 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. Lying face down on a comfortable surface such as a mattress or pillow, the penis can be rubbed against it. Works in this genre may be considered adult for any number of reasons. Both sexes sometimes apply lubricating substances to intensify sensation. Women oriented pornography is sometimes referred to as sex positive pornography. In academic discourse, racial fetishism is a postcolonialist term hentai sex found in the writings of authors such as Homi K. Arcane or occult pornography milf xxx involves sexualized situations with an occult or magical tone or performers who costume themselves in keeping with the theme, for example, a male performer dressed as a wizard. Female dominance refers to BDSM relationships and BDSM scenes in which the dominant partner is female. For some people, non-penetrative sex is the primary sexual activity of choice above all others. This type of pornography is almost exclusively hentai, as true hermaphroditic humans are not fertile and are not usually found in nature. On the other hand, the masochist enjoys being hurt, humiliated, or suffering within the consensual scenario. Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. In POV porn, the shooting videos porno gay style is generally similar to gonzo pornography, with the person receiving sexual gratification holding the camera him or herself—aiming it down at the actress or actor who is performing the sex act. A sex party is a gathering at which sexual activity takes place. Detective magazines, comic books and early fetish magazines In the early 20th century, Detective magazines covertly provided a way of publishing bondage imagery.