Love After School (1974)

One of the girls has short dark hair and a slim build — she starts off giving head on the bed, deepthroating the guy while he leans back. The lighting’s low, just a lamp in the corner, close-up shots focusing on her mouth and his cock. Later they switch to missionary on the floor, her legs up, then she climbs on top for riding. The second girl shows up in a group scene later, but the main action is the first pair. Camera stays tight, lots of skin, realistic moans, no fake shit. The transition from oral to creampie is smooth, both seem locked in.