Skilled mechanic Mariana Martix, clad in her greasy overalls, agrees to fix Duncan Saint's car in exchange for a ride on his massive cock. In the bustling workshop, she leans in, her ample bosom pressing against the engine, as she takes his throbbing member deep into her mouth. She licks and sucks, her expert tongue tracing every vein, while Duncan watches her plump ass wiggle. Once the car is ready, Mariana climbs onto the hood, spreading her legs wide, and takes Duncan's cock inside her wet pussy, riding him cowgirl style. Their fucking grows harder, the car shaking beneath them as she takes him doggystyle, her big ass bouncing against him. Duncan can't hold back, pulling out to spray his hot cum all over Mariana's face, a satisfied smile spreading across her lips.