"You're not supposed to do that," he whispers, making her jump. She quickly pulls her fingers out, her face flushed. But he's already seen her secret, already imagined his cock replacing her fingers. He steps closer, his eyes on her wet pussy, his voice low and commanding. "Keep going," he says, "let me see you cum." She hesitates, then slowly pushes her fingers back in, her eyes locked on his as she fucks herself for him.