Erotic Diary of a Lumberjack (1974)

The older guy has short gray hair, a receding hairline, and deep wrinkles — looks like a real dad in his 50s. He’s outside at the start, smoking in a garden, totally relaxed. Then it cuts to a bedroom where a slim blonde in her 20s with long nails is on her knees going down on him. Her mouth is stretched wide, she’s not faking it — you see every slow suck and her hand working the base. Later there’s another older guy in a suit standing near a couch, also smoking, like they’re setting up some kind of dark office mood. The blonde isn’t huge-titted, but she’s got perky nipples and a tight body. They walk through a forest at the end — three of them, two men and the girl — like some kind of strange weekend getaway. Lighting stays dim throughout, close-ups on skin, hands, faces. Feels raw, not overproduced.