Dirt (2007)

Josh Stewart and Courtney Cox are watching a video in which a man and woman are having having sex. The man is penetrating the woman from behind. Josh then lifts Courtney's skirt and bends her over in doggie style. (Penetration is implied however, no nudity is shown). He holds her down and then starts humping her from behind which elicit erotic moaning from Courtney.

First there are flashes showing a man and Courtney removing their clothes. Then the man is shown to have mounted Couteney in missionary style and his buttocks are visible. Her breasts are not visible as they are covered by the man's hands. However, her facial expressions are very erotic implying deep penetration.