Group sex can occur between people of all sexual orientations and genders. Sexual scenarios may involve male domination, female submission, exhibitionism and erotic entertainment. But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period. The effect is to give the viewer the sense that they are experiencing the sex acts that they are watching, as opposed to simply watching others as a voyeur. The person sat upon may be in bondage, sexually submissive, or simply held down by the body-weight of the other person. Individuals who can change between top/dominant and bottom/submissive roles—whether from relationship to relationship or within a given relationship—are known as horny milfs switches, though the term switch in this context is occasionally seen as derogatory and is rejected by many who might simplistically fit the definition. The principal characteristic of voyeurism is that the voyeur does not normally interact directly lesbian hentai with the subject of his/her interest, who is often unaware of being observed. It is sometimes described gay twinks as a sexual fantasy, by women or men, depicting an exhibitionist or physique worship scenario. Cum-shot pornography features a collection of male ejaculation scenes. Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. In recent years, Japanese films of this genre have become more common in the USA and Europe although it still remains a small, fetish-oriented part of the adult film industry. Softcore pornography generally contains nudity or partial nudity in sexually suggestive situations, but without explicit sexual activity, sexual penetration or extreme fetishism, while hardcore pornography may contain graphic sexual activity and visible penetration, including unsimulated sex scenes. 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.