A/N: Just smut, no plot. This little idea fell into my head, and I just had to write it down.

Twenty points to Gryffindor

She was drunk. Stumbling through the hallway, she knew she should have regretted joining Luna and the other Ravenclaws in their celebration of Rowena's birthday. But since she had always felt like half a Ravenclaw, it had been only natural at the time. She really should regret drinking so much Firewhisky. But she didn't. Hermione giggled to herself, as she leaned on one of the empty suits of armour that stood watch in the moonlit corridor. Oooops! The armour clanged as she lost her balance, falling backwards on her bum. It made her giggle even more.

"What have we here?" Professor Snape's dark eyes were suddenly looming over her, his hooked nose sniffing. "Have you been drinking, Granger? Not only that, curfew is long past. Twenty points from Gryffindor!"

Hermione could see, though, that his eyes were drawn to her legs, as her skirt had ridden up almost to her hip as she fell. Parting her legs a little more as she boldly met his gaze, she leaned back on her arms, thrusting out her chest. Licking her lips slowly, she could see Snape's Adams apple bobbing slightly.

He was shocked, but not entirely sure that he believed his eyes. Didn't Granger wear underwear? It was almost like he had seen a brief flash of a naked pussy when she parted her legs. His cock twitched a little, making him want to rearrange his clothing. This was improper. After all, she was a student.

"I'm sorry, professor. I lost track of time."

"Who were you drinking with, Granger?", he asked silkily.

Not wanting to expose the Ravenclaws, she answered: "I can't tell you, professor."

His eyes darkened, and he reached out a hand to help her up. "You'll be in detention with me until you tell me where this party is. Be prepared to work your intoxication off, miss Granger."

Taking his hand, she rose quickly – too quickly – as the world spun around her. Stumbling, she fell into his chest, grabbing hold of his robe. Lifting her eyes to his face, she giggled again. Oooops. He sure wasn't pleased.

He had to support her down the stairs, and she leaned heavily on him to avoid falling over again. Sighing, he put his arm around her waist, dragging her along.

Well into his room in the dungeon, she looked around with curiosity. She had never been inside his private rooms. There were books everywhere, and cupboards with neatly packaged Potion ingredients, vials and glasses with liquids and powdered substances. There were two large, leather chairs, a table, a desk with a chair and an open bottle of Firewhisky. She sniggered, maybe the professor had been drinking too before his patrol?

Running a hand through his greasy hair, he kept up his intimidating stare. "What to do with you, Granger," he mused. "You're not in a state where I would let you near my ingredients. This is how it will be: You'll dust my bookshelves and sort the books in an alphabetical order."

"Ok!", she replied. Taking hold of her robe, she pulled it over her head.

"What are you doing, Granger?" She could hear the worry in his voice, a faint tinge of panic too.

"Taking off my robe, sir. I don't want it to be dusty." As her robe landed on a chair, she saw him look at her with shock in his face. Ooops. She had forgotten that she'd been playing strip poker with the Ravenclaws. Her shirt, skirt and stockings were back on, but she couldn't find her underwear after the game. Her suspicion went to a burly, seventh year who had almost drooled as she took of her bra. Maybe he stole her underwear to masturbate into it?

Now, professor Snape was staring at her nipples, that stood out boldly and erect in the cold air in the dungeon. The thin fabric of her shirt made her darker areolas show through. Her shirt was askew, she realized, with quite a few of the buttons open. She showed a good amount of cleavage. Snape was almost drooling too, she rather thought. Naughty, she laughed to herself, as she found it intensely amusing that professor Snape by the sight of her now seemed to have fallen into his very own, little teacher-student fantasy.

They were dark shadows against the fabric, jutting out, begging him to touch and lick her nipples. The buttons of her shirt were almost all open, baring her chest. Those full, perky breasts, oh, how he'd love to squeeze them. But no, she was his student. A very sexy one at that, one he wanted to bend over, fuck her into mindlessness. No, STOP IT, he told himself.

She put her hands to her hips, saying: "Where would you like me to start, professor?"

He snapped his eyes up to her face, a spot of color blooming faintly on his sallow cheeks.

"You'll start over there with the top level. Take out the books, and afterwards you'll dust the shelf. You are not to use your wand, Granger."

"Ok." She walked up to his bookshelf, and he sat down in one of the chairs. Stretching up, standing on tip-toes, she realized that she wouldn't be able to reach the books.

"Um, professor? If I'm not allowed to use magic, you'll have to help me. I can't get hold of the books."

He sighed, moving out of the chair towards her.

"See?", she said, stretching out her arms as far as she could, feeling her breasts being pushed upwards by the movement, and her ass pushed out and back towards him. Snape swallowed one more time, before he took a step towards her. Standing almost directly behind her, his hand reached out, travelling up her arm, and plucking down the first book and putting it in her hand. She bent down, putting it on the floor.

Hermione smiled a little wickedly for herself. Oh, he wanted to touch her alright, or else he would have asked her to move over.

Making her eyes big and innocent, she said: "Thanks professor. Will you help me with the rest of the books also?" They moved along the shelf, taking out book after book from the top shelf, repeating the performance. Each time, his arm brushed the side of her breast, and Hermione moved a little closer to him, until her ass finally was pressed against his front. Oh, he had his fantasy going, alright. His cock was hard, poking her through his clothes. She almost wanted to giggle again, turning on Snape had never been in her wildest dreams. But, tonight she was in a wicked mood. As he put the next book into her hand, she bent down with her legs straight, grinding her ass into his erection. A groan emerged from him, and he gripped her hips.

She rose slowly, still pressing herself against his body, and then his hands traveled up, grasping her tits, massaging her nipples. She moaned, leaning her head back into him. One of his hands moved down to her skirt, disappearing underneath to the inside of her thighs. As he reached the apex, he made a gasp.

"Granger, I never knew you were so slutty", he grunted as his fingers found her bare mound. "How come you don't wear underwear at all?"

She sighed, parting her legs for him, letting his fingers pass through her folds.

"And you're so slick and wet for me," he continued, his fingers working her little nub. "All these years you've been in my classroom, and I never knew you were such a little siren underneath your robes." His other hand continued to stroke her nipple, and she gasped as he inserted a finger into her cunt.

"So wet, and so tight. Do you enjoy fucking, miss Granger?" Snape's voice were silky and dangerous as usual, and his finger was now pumping her, while the others still played with her clit.

"I don't know," she gasped. "I'm a virgin. Maybe you'll teach me how?" Her emphasis on teach wasn't lost on him, and she could see his eyes dilate. Steering her towards his desk, he leaned her over, positioning himself behind her, pulling up her skirt. She leaned forward on her arms, strutting her ass out to him.

"You're a very naughty girl, miss Granger. We'll see if you can make yourself earn the points you lost this evening. Would you like that, miss Granger? Working off your loss of points?"

"Yes, please, professor. Please!", she whispered throatily. Surprisingly, it turned her on, this imbalance in power. He, a teacher, and she, a student. It was all wrong, but right now, oh so sexy.

He fumbled with his clothes, and then she could feel it, a thick, silky cock positioned just at her entrance. She shivered a little in anticipation, as he slowly pushed his member into her.

It hurt her. "Please, professor, it hurts", she whined, but he continued to press himself into her, filling her up, before with a quick thrust he buried himself to the hilt in her. He growled, with a death-grip on her hips, and she gasped and shook. "You're so big, it hurts, please be careful," she moaned.

He reached down, rubbing her little nub again, as he slowly slid himself out. He withdrew almost to the tip, before he thrust in again, making her whimper a little. But, it felt good too, and she moaned as he rubbed her more firmly. Speeding up his tempo, the thrusts were faster, and Hermione felt herself move against his hips.

Severus grunted: "You're… so… tight… Granger," almost forcing the words out. His movements became harder, and he was ramming his cock into her pussy, still stroking her clit. It felt so heavenly. Her wet slickness fitted so tight around him, squeezing the tip of his cock. He wouldn't last long, even though he was nineteen years her senior. He should be experienced enough to make it last for as long as he wanted to, but that felt like an impossible goal. Severus was holding on to a thread, his orgasm only a few thrusts away, like he was a randy teenager with no stamina. Oh, fuck, he thought, it wasn't like he usually had the chance to bend such a sexy young witch over the table pushing his cock into her.

Hermione felt the build-up of her own orgasm, moaning more and more audibly, until she came undone, clenching around him, milking his cock. As her gasp gave way, she felt Snape's cock twitch inside her, and he slammed himself into her with a series of erratic thrusts. As he came deep inside her, burying himself into her pussy, flooding her with his seed, he roared: "Twenty points to Gryffindor!"