Ein Lasterhafter Sommer (1981)

Starts with a slim white brunette teen swimming nude in a pool, partially submerged, with a slide and lounge chairs in the background. Moves to a beach or rocky area where a blonde teen is bent over, getting fucked doggy style by a shirtless black guy. Another white teen watches in the background. The blonde has natural tits and an athletic build, while the black guy is muscular and focused. The beach setting is bright and natural, with towels and beach accessories scattered around. Later, the brunette from the pool is caught in a close-up, preparing for something indoors with soft lighting. There’s also a topless shot of the blonde posing sensually with roses in a living room. The guy’s facial expressions are intense, suggesting he’s really into it.