Portrayals of lesbians in the media suggest that society at large has been simultaneously intrigued and threatened by women who challenge feminine gender roles, and fascinated and appalled with women who are romantically involved with other women. Women oriented pornography is sometimes referred to as sex positive pornography. Pregnancy fetishism is a context where pregnancy is seen by individuals or cultures as an erotic phenomenon. Sexual relations between women have been illustrated as well as narrated, but much of the written material from the early modern period has been destroyed. Rape hentai movies pornography features performers simulating rape. Celebrity sex nude milfs tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. This industry employs thousands of performers along with support and production staff. The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. The actual height of the giantess within the fantasy may vary depending on the individual. The original definition of dogging – and which is still a closely related activity – is spying on couples having sex in a car or other public place. 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. The concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct. Bestiality is illegal in many countries. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face. Although interracial pornography theoretically can apply to depictions of sexual activity between performers of gay fuck any different racial groups, the term is most commonly used for heterosexual sex acts between black and white performers.