Slim blonde with perky tits and flat stomach stretches out on the gym mat, pink bikini barely covering her pussy. Grandpa in glasses looms over, hands yanking those strings, exposing everything. She grins up at him, legs splayed on the weights bench. Cock slides in slow at first, then grandpa starts pumping hard into her tight hole. Tits bounce with each thrust. Switches her around, bent over the equipment, ass up for deeper strokes. She moans loud, gripping the bars. Finishes with her on her back, legs wide, taking every bit until he pulls out and unloads on her belly. Raw grandpa action, no holding back.