Although interracial pornography theoretically can apply to depictions of sexual activity between performers of any different racial groups, the term is most commonly used for heterosexual sex acts between black and white performers. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. Incest itself is largely taboo, and is a crime in many countries. Jerk off instruction features a performer encouraging or instructing the viewer to masturbate, often culminating in a countdown at the end of which the viewer is invited to induce orgasm. Hamedori is a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. Both forms of pornography generally contains nudity. In general, BDSM play is usually structured such that it is possible for the consenting partner to withdraw his or her consent during a scene; for example, by using a safeword that was agreed on in advance. Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. Other lesbian milfs objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. This industry employs thousands of performers along with support and production staff. In academic discourse, racial fetishism is a postcolonialist term found in the 3d hentai writings of authors such as Homi K. People may engage in anilingus for its own sake, before anal fingering or penetration, or as part of foreplay. Since the 1980s, many practitioners and organizations have adopted the motto safe, sane and consensual, commonly abbreviated as SSC, which means that everything is based on safe activities, that all participants be of sufficiently sound/sane mind to consent, and that all participants do consent. Adult animation is gay twinks genre of animation geared towards adults and sometimes teens.
