Kasimir der Kuckuckskleber (1977)

Dude with short dark hair and a muscular build sticks his dick in a slim blonde with long hair in a dark bedroom. She’s on her back, legs up, taking it deep — you can hear the bed moving against the wall. After a few minutes he pulls out, and she finishes him off with a sloppy blowjob, swallowing right after. Later scene shifts to the living room: two more girls show up, one with dark curly hair and a thick ass, the other slim with long dark hair. They’re all naked, messing around while Kasimir jerks off watching. Then the dark-haired girl gets on her hands and knees, and he pounds her hard from behind while the blonde rubs her own pussy next to them. Camera stays close during oral, wide shots show full bodies during group stuff. Lighting’s really low but you still see all the important angles.