A celebrity may allow such a recording to surface willingly, as part of a publicity stunt. The related term 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. By Japanese law, the genitals of actors and actresses must be censored and up the mid-1990 so was the depiction of pubic hair. The work of Bruce Seven has been called reality porn, due to his lack of using scripts and asking his performers to act naturally in their own character. Bareback sex gay bear porn is physical sexual activity, especially sexual penetration, without the use of a condom. The term Asiaphile is sometimes used to describe the same phenomenon as is yellow fever . Some techniques which may work for one individual can be difficult or uncomfortable for another. Some do not use the diapers at all, for arousal, or bladder and bowel movements. Transsexual porn star Wendy Williams has stated that transsexual porn is classified as Straight Specialty. Entacle erotica describes a type of pornography most commonly found in Japan which integrates traditional pornography with elements of bestiality and a fantasy, horror, or science-fiction theme. Arousal may be triggered by seeing the body movements or facial expressions of that person. Pornographic films present sexual fantasies and hentai videos usually include erotically stimulating material such as nudity. See milf fuck Gay-for-pay. Animal masturbation has been observed in many species, both in the wild and in captivity. Interracial pornography typically employs ethnic and racial stereotypes in its depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation of actors by race has diminished considerably. A facial is a form of non-penetrative sex, though it is generally performed after some other means of sexual stimulation, such as vaginal sex, anal sex, oral sex or masturbation.