Depictions of male and female masturbation are common in pornography, hentai videos including gay pornography. A celebrity may allow such a recording to surface willingly, as part of a publicity stunt. These scenes may involve the female actor calling for the shot to be directed gay movies at some specific part of her body. The related term naked milf twinkle-toes, which implies that a man is effeminate, tends to be used in a derogatory manner. The person sat upon may be in bondage, sexually submissive, or simply held down by the body-weight of the other person. It is mutual consent that makes a clear legal and ethical distinction between BDSM and such crimes as sexual assault or domestic violence. Pornographic films are generally classified into sub-genres which describe the sexual fantasy which the film and actors attempt to create. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. Most soft crush fetishists avoid being placed under the same label as hard crush fetishists, believing that crush films with larger animals give the entire group a bad label. 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. Even though the performers who perform in these films typically appear on many reality websites within a short span of time, most of these websites claim that each of them is an amateur. The term hentai is never used in this context in Japanese. Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. It may be regarded as taboo or unnatural, and is a criminal offense in some countries, punishable by corporal or capital punishment; by contrast, people also regard anal sex as a natural and valid form of sexual activity that may be as equally fulfilling as any other desired sexual expression.