Pervertissima (1972)

The girl has long blonde hair, a slim build, and a visible tattoo on her side. She’s in her 20s, mostly sitting or lying in bed, first straddling the guy and grinding slow, then switching to doggy with him pulling her hips hard. The guy’s in his 30s, dark short hair, balding slightly, with a muscular frame and a tattoo on his arm. They’re alone in a bedroom lit low, clothes off, full focus on the action. Camera stays close, especially during the oral close-ups and when she’s on top. Some wider shots show her sitting up post-sex, calm, hair messy, like they took breaks between rounds.