Michelle's fingers slip beneath her panties, finding her clit already engorged and eager. She rubs herself furiously, her breath coming in short gasps as she pictures her stepbrother's cock, hard and throbbing. She can almost feel it inside her, stretching her, filling her. Her body convulses as she comes, her juices soaking her panties. But as she opens her eyes, she finds her stepbrother standing in the doorway, his eyes wide with shock and something else...