The Beasts (1995)

There is an intense lesbian sex scene where two women are completely naked. One is on top of another. We see one of them begin to lick and suck on the other woman's breasts. We see that woman moan softly and arch her back on the bed implying sexual tension and satisfaction. We see them later kiss in another scene and they are still naked.

A man has incestous sex with his female cousin.

Two women have sex together while a man watches.

A woman undresses another woman while a young man watches. She then strikes him in the groin with a golf club. He cries out and holds himself while the woman returns to caressing the naked woman.

A young man watches a clothed woman lay on top of another woman and kiss and caress her nude body. He gets an erection and touches himself through his clothing. The woman gets off of the other woman and commands him to leave the room.