Didn’t know it was BDSM lingerie — now he’s fucking her hard

A woman in a black strappy harness lies on a bed, visibly tense at first, then shifts into various positions as a man penetrates her from behind and orally. Her expressions shift from apprehension to surrender as he grips her hips and thrusts. The setting is a bedroom with white sheets and soft lighting, focusing tightly on their physical interaction without dialogue or external context.