Out of the corners of her eyes, she saw Malfoy's hands curl into fists on the arms of his chair as she bobbed slowly up and down, gradually taking more of him into her mouth. She pulled back, sucking on just the head before sliding all the way down to the base, swallowing around him. "Fuck," he hissed, his thighs tense beneath her hands, and she flicked her gaze up to see his face contorted as though in pain.