Seiju gakuen (1974)

A slim brunette in her 20s is front and center, face covered in sweat, hair stuck to her forehead and cheeks as she moans through deep thrusts. The lighting is dim, intimate, focused tightly on her face and body in a bedroom setting with red sheets faintly visible. Most of the action is close-up — you see every grimace, every gasp, her mouth wide as if struggling to keep quiet. There’s no clear storyline, just straight-up fucking with an emphasis on raw facial expressions and physical reaction. The camera stays tight, rarely pulling back, making it feel personal and unfiltered. She’s not faking — the sounds, the breathing, the way her body tenses all feel real, like you’re right there next to the bed.