The allure of a thong-clad ass proves too much for this stepbrother to resist. He corners his young, eager stepsister, his hands roaming her curves, his breath hot on her neck. She grinds against him, feeling his hard cock straining against his pants. He strips her thong off, his eyes feasting on her tight, smooth ass. He teases her, running his fingers along her crack, making her whimper. He enters her, stretching her tight asshole with his thick, throbbing cock. She cries out, her body tensing, then relaxing as she adjusts to his size. He fucks her hard, his balls slapping against her, his fingers digging into her hips as he pounds her into submission.