Disclaimer: I own nothing but the plot of this story.
Ginny scrubbed tables for what felt like hours. She was starting to wonder whether tonight would bring any sort of gratification when she heard his voice in her ear. He stood startlingly close, so close she could feel hot breath teasing strands of fiery hair.
"Do you have anything to say for yourself, Miss Weasley?"
"I did nothing wrong." she shot back, turning to look at him, doing everything in her power to provoke the man, "I was just a bit absentminded."
"I suppose you were absentminded when you got dressed today as well."
Her cheeks reddened. "I'm sorry, sir?"
His eyes raked over her body, pausing to linger on her skirt. "I think you know perfectly well what I'm speaking of."
Ginny fought the urge to grin. She didn't think she could bear it if he decided to draw this out much longer. "Did I forget my knickers, Professor?" She tried to sound innocent, embarrassed, unsure. Judging by the look in his eyes, she knew she had succeeded.
"I very much doubt that you forgot anything, Miss Weasley." His voice was lower now, rougher, as his body drifted slowly closer to hers.
"You think I left them off on purpose?" She sounded appalled even though at the moment, she was almost unbearably aware of the slickness between her thighs.
"No, Weasley." he growled, "I know you did. Do not think I've failed to notice the slutty alterations you've made to that uniform skirt."
"Professor, almost all of the girls at Hogwarts-"
"Do NOT interrupt me, girl! I know for a fact that you were wearing panties in class today, and now you are not. Am I to think this was unintentional, that they somehow vanished without your knowledge."
"No, sir." Ginny stared at the ground, humiliated at having been caught making such an obvious attempt to provoke him sexually.
"Your actions will have consequences, of that I can assure you." His silky voice had grown quieter, and infinitely more dangerous. "Stay." he commanded sharply before striding slowly to the door. Ginny stood in shock as he cast additional wards against intrusion, then turned to her and slowly removed his outer robes. She was not surprised that the clothes he wore beneath were dark and formal, but as he walked toward her, he started to unclasp his belt.
Her heart was beating faster now. Very rarely did he reward her with the mind-shattering pleasures of intercourse.
"Remove your shirt." Her hands trembled slightly as she unbuttoned it and let it fall to the ground. She watched him avidly, but with a wave of disappointment, realized that he was sliding his belt free, not unbuttoning his trousers. He couldn't possibly be getting ready to do what she suspected, could he?
He strode over to his desk. "Come here."
Ginny wasn't sure whether she liked where this was leading, but she followed nonetheless. The answer to her questions came when he swiftly bent her over the desk. She could feel his burning hot hardness rumpling the pleats of her skirt as he whispered roughly in her ear,
"Remain here until I instruct you otherwise. Bear in mind that our safe word still exists, and you may stop me at any time, but should you choose to do so, this detention will be over and you will be expected to return directly to your dormitory."
The sound of his voice made her wonder how much longer she could bear having her aching arousal left unfulfilled. The coarse fabric of his pants brushed her bare thighs as he moved away slightly, and for a moment, there was silence.
Ginny was tempted to turn and look at him, but before she had the chance, she felt the leather of his belt biting into the soft skin of her back. She cried out. It hurt more than she thought it would, and she almost wanted to stop him, but she didn't. He would make her leave, and no matter what she did to herself with the hangings closed while the other girls slept, she would not be satisfied, and probably would not sleep.
"Remove your bra." He sounded more demanding now, and she complied before she had even fully processed his command. As soon as she was pressed against the smooth, cool desk again, she felt the sting of another blow. This was getting a little too intense, but she heard him breathing roughly behind her and pleasure coursed through her body as she imagined what his face must look like now, as he paused to savor the pain he was inflicting. A calloused hand caressed the fresh welt, making it sting and tingle intriguingly. Maybe, Ginny thought, this wasn't all bad.
And the next blow felt better, until the pain itself started sending jolts of arousal through her. It wasn't long before her need was entirely overwhelming.
"Please." she moaned softly.
"'Please" what? What is it that you want?" His voice was sharp and cold, but the intensity of his desire was still evident in his tone.
"Anything!" she panted.
He whipped her again.
"No," she moaned, "not that. Touch me!" she begged.
His fingers crept between her knees, trailing up her thigh and stopping just short of the place she wanted desperately to be touched.
"Fuck me." she pleaded.
His hand moved away. "No, I don't think I shall."
"I need it."
He leaned over her body, pressing her against the table with so much force she could feel the line of buttons on his shirt against her bare flesh.
"What you need," he hissed in her ear, "is to be punished."
The way he said that word made her terribly nervous and excited.
She undulated against him as much as she could with her body pressed so tightly against the desk, trying to ignore the way his buttons scraped over her welts.
"Very well," he sighed, "you have behaved tonight, so you will not leave unsatisfied."
A hand pushed into the almost nonexistent space between their hips and slid her skirt out of the way. Two long, rough fingers slid easily inside her and she gasped as they started to dance agilely against every inch of warm flesh they encountered. It couldn't have been more than a few seconds before an orgasm shook her body hard enough to drive away all rational thought. One of her hands flew back and wrapped around his cock. He groaned and thrust against her as the sound of his voice drew out her orgasm. He was harder than she had ever felt him, grinding against her with wild abandon for an instant before suddenly drawing away.
He walked briskly across the room and put his robe back on, before turning and telling her to get dressed. He sounded frustrated and a bit breathless. Ginny gingerly pulled her shirt over her shoulders, unwilling to endure the agony of a bra against her raw back. She stuffed the unwanted undergarment in her bag and walked out of the room, feeling oddly dazed and amazingly drained.
She fell asleep almost the moment her head hit the pillow, wondering if the wetness she had felt against her hand right before he pulled away was only her imagination.