Shitty pianist now prove you're a slut

A red-haired woman in glasses is shown in multiple sexual positions with a tattooed man. They begin near a piano, then move to a bed and a couch, engaging in intercourse and oral sex. The man is dominant, holding her neck or guiding her movements, while she reacts with open-mouthed expressions. No names or relationships are stated, and the setting includes a brick wall and dim lighting.