She’s No Angel (1976)
The scene starts with a close-up of a brunette on her knees, head bobbing as she sucks a white guy off in a dimly lit office. You can see the glow from a desk lamp hitting her face—she’s got long dark hair, slim frame, and doesn’t hold back on the spit. He’s standing, wearing nothing from the waist down, one hand on her head, the other briefly touching the phone on the desk like he’s waiting for a call that never comes. After a few minutes of deepthroat work, she swaps to a handjob, stroking him hard while looking up, eyes locked. The camera stays tight the whole time—no wide shots, just face, mouth, cock, hand. It’s repetitive but effective, the kind of loop you’d jerk off to during a slow workday.