Brides of Blood (1968)

Clothes ripped off bound women to expose breasts with full female nudity from a distance. Mating dance without nudity.

A busty woman, in a see-through nightgown showing off her cleavage, seduces her husband while he sleeps, kissing him hard and biting his lip. When he doesn't wake up, she lustfully journeys to another bedroom and watches a near-naked man writhing in his sleep. She attempts to climb on top of him before she is interrupted.