Best Friends (1975)

The whole scene is outdoors, and it starts with a blonde in a swimsuit top and shorts, flirting with a brunette. Both girls are white, slim, and look in their 20s. The action moves to a grassy area where they lie on a blanket, making out and getting handsy. She sucks him off on the beach, kneeling in the sand, and it’s shot up close so you see all the details. Later, they fuck hard on the blanket, with her riding him and him taking control in missionary. The natural lighting makes everything look sharp and real.