unsimulated sex

Unsimulated sex is the presentation in a film of sex scenes where the actors engage in an actual sex act, and are not just miming or simulating the actions. At one time in the United States such scenes were restricted by law and self-imposed industry standards such as the Motion Picture Production Code. Films showing explicit sexual activity were confined to privately distributed underground films, such as stag films or "porn loops". Beginning in the late 1960s, most notably with Blue Movie by Andy Warhol, mainstream cinemas began pushing boundaries in terms of what was presented on screen. Although the vast majority of sexual situations depicted in mainstream cinema are simulated (in early pornography, the main actors engaged in simulated sex, with inserts placed in the film), on rare occasions actors engage in real sex. The difference between these films and pornography is that, while such scenes might be considered erotic, the intent of these films is not solely pornographic.