Hentai byôtô: SM shinryo-shitsu (1989)

Dude starts by playing some kind of doctor or boss in an office setup. The girl’s a slim blonde with manicured nails, looks like a college intern or secretary. He gets her to strip down to bra and panties while holding a folder in her face—kinda like he’s forcing her to comply. Later, it switches to a medical theme with MRI scans and shit, but don’t worry, it’s just an excuse to get her on a table in stockings and heels while he goes down on her. The oral’s solid—he’s got his face buried between her legs, and the camera gets right in there for a close-up. They finish with her sitting on a desk, unbuttoned shirt hanging off, while he eats her out again. Lighting’s dim but focused, so you see everything without it looking like a cheap porno set. Bald guy’s got a stocky build, not some gym bro, which makes the power dynamic feel more real.