"I've never done this before," the milf admits, her voice trembling as her step-son guides her onto her hands and knees. "Don't worry, Mom," he reassures, spitting on her tight asshole and rubbing it in with his thumb. He replaces his thumb with his thick cock, pressing slowly into her virgin ass. She cries out, but he silences her with a rough hand over her mouth. He fucks her hard, his balls slapping against her clit, making her whimper with pleasure-pain. He pulls out just in time to cover her face in his hot cum, leaving her a mess of smeared juices and shameful satisfaction.