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. Gloryhole pornography features women performing fellatio on unidentified men through a small hole made in a bathroom divider. Animal masturbation has been observed in many species, both in the wild and in captivity. Reality pornography is professionally made porn which seeks to emulate gay movies the style of amateur pornography. Interracial pornography typically employs ethnic gay hentai and racial stereotypes in its depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation lesbian milfs of actors by race has diminished considerably. 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. Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally made pornography designed to appear as if it were amateur. A pearl necklace is a slang term referring to a sexual act in which a man ejaculates semen on or near the neck, chest, or breast of another person. Voyeurism: Seeing another urinate without the person knowledge either through video taping by a hidden camera, or by lurking in locations where people are urinating or are likely to have an urge to urinate. Babysitter pornography features usually teenage girls being exploited and having taboo sex with older, male employers. Pornography in the early 2000s. These scenes may either have the cameraman directly engaging in sex or merely filming others having sex. It is used, for example, at fertility clinics to stimulate sperm donors. In the context of consensual erotic activities, sadism and masochism are not strictly accurate terms; there is a significant difference from the medical or psychological usage of both terms. Snuff pornography involves the actual death of any of the participants, consenting or otherwise, simulated death is not considered snuff.