The hum of the engine and the patter of rain against the windows create a symphony of sensation as Michelle and her stepbrother succumb to their forbidden desires. She straddles him, her hips grinding against his as she unbuttons her blouse, revealing her heaving breasts. He takes one in his mouth, his hands squeezing and teasing the other. She moans, her head falling back, as he unzips his pants, his hard cock springing free. She guides him inside her, their bodies moving in sync as they fuck passionately in the confined space of the car, their moans drowned out by the storm outside.