Hot Spur (1968)

Several cowboys play poker in the bunkhouse while two women entertain them. The men gradually undress the women until they are naked. Various sexual games are played ending up in the two women being forced to make love to each other while the men run their hands over the women's naked bodies.

A stable hand watches as the ranch owner is raped by one of her cowboys.

Two men sexually harass a barmaid. They end up raping her while the stable hand has flashbacks of his sister being raped. Breasts are shown.

A cowboy kidnaps the female ranch owner to avenge his sister's rape. He partially undresses the woman during the kidnapping. Later he rapes her, copying the flashbacks of how his sister was raped. Both the ranch owner and the sister's entire naked body is seen.

The most severe violence is what men do to women, moreso than to each other.

Rape sequences are intense.