The Younger The Better (1982)

Skinny blonde in glasses, early 20s, short hair and tight body — you see her sucking dick in a garden surrounded by flowers. Guy’s got a tattoo on his arm, standing behind her while she’s on her knees, deepthroating with her eyes closed. They swap to indoor action with two brunettes joining — one has long dark hair, the other short, both slim and in their 20s. Full-on threesome on a bed, lots of kissing, pussy rubbing, and pussy-eating. Camera stays close during oral, catches every slurp and moan. The lighting’s dim inside but clear enough to see the sweat on their backs during doggy style.