Swedish Confessions (1977)

In Kärleksvirveln, the primary plot follows a mother and daughter caught in a seductive rivalry. Neglected housewife Gladys falls hard for the smooth, skilled Dr. Romeo Calligari. He fucks her deeply and thoroughly — taking her in long, passionate sessions that leave her moaning and spent. But her teenage daughter, Doris, has been secretly watching. Aroused and competitive, Doris decides she wants him too. She seduces the doctor with bold, youthful hunger, offering her body and gasping as he pushes inside her. Calligari becomes the prize they both crave. Frustrated and aching, Gladys eventually picks up a stranger in a bar. She lets him fuck her roughly, then coolly tosses money at him afterward, reclaiming her power even as desire continues to pull her family into a dangerous, sensual whirlpool.