Take Off (1978)

A slim brunette with dark bobbed hair and a pearl necklace is on her knees sucking a guy with a slicked-back haircut and bow tie. She takes his dick deep, throat fucking with her head bobbing fast, camera tight on her lips and throat. They move to bed — she crawls on all fours, ass high, getting pounded in doggy while he grips her hips hard. Her slim body moves back into him, face pressed into the pillows during long grinding strokes. Later they face each other in a dim room, kissing with lipstick smeared, his hand on her neck. The lighting stays low throughout, heavy on close-ups during oral and rear entry, showing sweat and movement clearly.