Sandy Johnson, Kirsten Baker, Rikki Marin - Gas Pump Girls (1979)

Sandy Johnson nude climbing over from the back seat of a car into the front to join a guy while topless, kissing him and then going down on him as he leans against the car door. Afterward, we see more of her breasts as she sits up and then puts on a shirt. Rikki Marin naked untying her orange top to bare her breasts as she walks across a doorway