Girl on Girl (1981)
One of the girls has a tattoo on her arm and a lean, wiry frame — you see it clearly when they’re face to face during grinding. They start off kissing deeply on the bed, both fully into it, mouths open, hands sliding over bare backs. The oral part is up close, lots of wet slurping shots, one girl on her back pulling the other down onto her cunt. They switch positions halfway through, one riding the other’s face while the camera stays tight on the action. There’s a wide shot near the end showing both girls tangled up, legs wrapped, clearly lost in the moment. Lighting’s dim but consistent, giving it that private, intimate vibe without losing detail.