Chapter Text
She was late. Severus eyed her like a predator its prey. Hazel eyes, wide with fear, and lips like rose petals, moist and slightly parted as she recovered from her running. As if they were made to stretch around his dick and suck him hard...
He had absolutely no idea where that had come from, but the mental image made his hands tighten around the arms of his chair and his penis twitch in his trousers. And once again he realized: living all year in a boarding school full of children and old people was not exactly satisfying for a wizard in his prime. He was completely aware that she was his student. His frustratingly mature and of age student, whose nipples were clearly visible through her thin white blouse in the cold dungeon air. Actually he should send her away. Fuck. Damn it, that was precisely what he was yearning to do. Fuck Granger.
Oh, sod it, he was able to cast a simple Obliviate. Nobody had to know. Nobody but him and his throbbing cock.
A simple little spell of his own creation enabled him to see past her layers of clothing. Hmmm. She had round and perfectly symmetric tits heaving with her rapid breathing. Her hips were slightly rounded and framed the small patch of auburn curls between her creamy white thighs. Definitely fit for fucking. That was exactly where he wanted to be.
His cock turned to steel within seconds and demanded immediate attention, but tonight he did not want to take care of it himself. A man could only wank so often before he needed some pussy wrapped around his prick. And while she was here in his classroom, when he desperately needed a shag… it was not his fault she had had to get herself detention for tonight. With a wave of his hand he locked the door and raised his wards turning the room completely soundproof.
“Get over here, Granger”, he snarled dangerously. He nearly smirked when he watched her wince and hurry up to his desk, where she stood with her eyes glued to the ground. She looked so young and innocent in her terror… perfect. Slowly he raised himself off he chair and circled her a few times, pondering how to take her best. If he was going to alter her memory anyway, why not get a little kinky? He would shove it down her throat first, he decided spontaneously. Then… over his desk? Against the blackboard? Hmmm… too many possibilities!
In the end he could always drink some stamina potion and bang her until he ran out of ideas. That sounded quite sensible. Who knew when he would get an opportunity like this again? Summoning and downing the potion took him a mere couple of seconds. His eyes glittered cruelly as he held out the phial for her, drawling: “Soooo… what is this?” He could tell the exact moment realization began to sink in and she started to tremble.
“Alright, let us get started, Miss Granger, shall we? Today you have destroyed a few dozen Galleons out of ignorance and idiocy. I shall teach you a lesson to insure you are not going to behave so thoughtlessly again. In order to do that I intend to place my cock in your mouth for you to suck me off before I shall fuck you hard until you have to crawl back to Gryffindor tower. Questions?”
Her only response to that announcement was a choked little whimper. Her eyes nearly popped out of her head, disbelief and panic written all over her face. Severus smirked and reached for his belt, slowly and deliberately unbuckling it, glorying in her horror. When he finally pulled his aching erection out of his boxers she looked as if she was going to be violently ill.
Well, he would make sure she would be gagging on his dick quite soon. Her eyes were fixated on his dripping slit as he presented his enormous cock to her. Fascinating as it was, he soon decided there had been enough of a foreplay. Time for the overture. Stepping towards her and leaning on his desk, his legs comfortably parted and his prick bouncing slightly as he walked, he beckoned her over. She did not move an inch, so he rolled his eyes and yanked her down in front of him, crashing her knees onto the cold dungeon floor with an audible thud.
Grabbing himself with one fist, he buried the other in her locks and pressed his glittering glans against her closed lips, greasing his pre-cum all over her mouth. “Open up, little girl. You will suck me or regret it bitterly. It is entirely your decision. However, you should consider the fact that I might shove it up your tight little arse if you refuse. Up to you.”
When she gasped in shock he jerked forwards and pressed it into her mouth. It was wet and hot and just glorious! He moaned loudly, grabbing her head with both hands and tilting her face up to his. Her eyes were shining with tears and her jaw was quivering. “Good girl”, he drawled with a cruel smile. “Now you will pull your lips over your teeth. Do it! Good. Furthermore, you will move your mouth up and down my dick and suck. Suck as hard as you can. You will use your tongue to massage it. You will keep going. Even when I squirt down your throat. You will take it all and you will swallow. Begin.”
When she finally began to move – extremely carefully and hesitant – he instantly buried his hands in those curls of hers. She did not seem to get the hint, still only taking him in a few inches. That simply would not do. He watched her tear-stained face move for one more minute, before deciding he needed more. She had had her chance.
With a primal scream he mercilessly drove his cock into her as far as it would go and pressed the tip down her throat. It felt divine, she was gagging and struggling beneath him, her muscles contracting around him, trying to push him out, but he simply held on tighter. He could not let go, it was too damn good. He felt it building.
And then he began rutting her face, never pulling out more than an inch, fiercely enjoying the lewd sensation of her being at his mercy, as she fought to get away from him. He was already much too aroused to give a damn. Climbing the peak had never been so good before. He was almost there. Almost. Only a few seconds. “I’m gonna drown you in my spunk. I’m about to come, little slut, wait for the first surge.” He bent down, wrapping both arms around her head as he squeezed himself inside her.
„Uuuuuuungh, theeeeere you go… oooooh yessssss… suck-suck-SUCK! SUCK IT NOW!!!“, he cried when his cock exploded and his hips jerked against her chin. She obeyed, making him roar. He could not possibly go any deeper, but he tried anyway. She was moaning helplessly, fighting the inevitable. One of his hands snapped to her jaw, holding her lips closed around his cock as he continued emptying himself inside her, his balls tingling and shivers of satisfaction shattering his body. And finally she swallowed, weeping like a baby, but she did. Her throat convulsed around him, while he groaned in pleasure.
This was what he would be thinking of anytime she would not be able to keep her filthy mouth shut in class. For filthy it was, he had just made sure of that. Pressing her lips around himself with both hands, he pulled out of her agonizingly slowly, cleaning himself in the process. When he finally let go of her, she gasped for air and collapsed into a sobbing mess at his feet. Glorious. And he was not even close to done with her.