21 Sept 1998

Adjusting her tits in her bra so they were as perky as possible, Hermione raised her hand and knocked on Snape's office door. She wished she was able to wear the same kind of outfits she had worn at Malfoy Manor, but she knew she'd never get away with it. Instead, she was in her after class attire; jeans, cardigan — that she'd unbuttoned right before she arrived outside his office — and a tight vest.

There was movement from within and she internally grinned that her professor was inside. Quickly reaching into her bag, she pulled out the rollerball perfume bottle she had filled with a mixture of Amortentia and lust potion and applied it to her pulse points. She had just placed the bottle back in her bag when the door opened and Snape sneered at her.

"What do you want?" he growled, his body blocking the doorway so she couldn't enter.

Normally she would have been afraid of that tone, but she wasn't a child anymore. She was a woman, a Death Eater, one of the Dark Lord's favourites; nothing Snape could say scared her anymore.

"I have a question about the essay you assigned, sir." She used her most innocent voice, hoping he'd let her in.

"I don't have time to help insufferable little–"

"This is your office hour, is it not? I thought that meant you were free to help all students who might want to learn more about Defence. Or is teaching R.A.V.E.N. level classes too much for you… sir?" She took a step away from him, pretending to walk away. "Maybe I'll just send a letter to Professor Lupin if you're not able to help."

His lip curled, but he stepped back, letting her into his office. She smirked as his nostrils flared as she walked past him. He was already affected by the way she smelled. He gave her a piercing look as he rounded his desk and took a seat on the opposite side of her, gesturing for her to take the chair across from him.

She continued to stand and pulled out the essay she had already completed. He'd asked for two feet on the impacts of Dark Magic on the soul and she hoped hers would do the trick in breaking down his defences. Unrolling it, she moved towards him and set it on his desk.

The Correlation Between the Dark Arts and Sex Magic

"I'm wondering if you could tell me if this part is correct. Leaning over so her side was brushing against his arm and her tits appeared at the best angle, she pointed to her work.

Casting and being around Dark Magic impacts the pleasure sensors in the brain. This makes them fire at a higher rate than normal, causing the caster or anyone nearby to notice an increase in sexual arousal. Many Dark witches and wizards use this rush of pleasure to increase their sexual appetites or even to fuel their bodies so they can last longer when they perform Sex Rituals. In the olden days, it was not unheard of for magical humans to cast Dark spells on the Feast days to make their rituals more powerful.

"Do you think this is correct, sir?" she asked, her voice low and husky.

He cleared his throat, clearly struggling to fight off the way her scent was making him feel.

"I've read a lot of books about sex magic, sir, and it seems correct. You'd be surprised by the things they wrote. And the way they say people can.. experiment."

She jumped back as he quickly stood from his seat, his chair crashing to the floor.

"I don't know what you're playing at Miss Granger, but I think it is time for you to leave," he hissed. "You can turn this in when it is due tomorrow and wait for it to be marked like everyone else."

He stormed from his office into a hidden door behind his desk. She had been unsuccessful, but she knew it was only a matter of time before he broke. He may have been rude to her, but there was no denying the tent in his robes as he stalked away from her.

9 Oct 1998

Snape took a deep breath before he entered his classroom. He wasn't sure what had gotten into Miss Granger but ever since she'd returned to school after spending the weekend with her parents she'd been acting very strange towards him. He didn't know if it was because now she was an adult in their world and a Hogwarts School graduate or if she was playing a prank on him, but he was done with her coming to his office or turning in sexually suggestive essays.

Merlin, the last second to last class she'd been in, she'd looked at him whilst circling her nipple as he was trying to teach. How none of the students around her noticed her behaviour was beyond him. Then two days after that, she must have charmed her shirt to be see-through or something because when she had adjusted her robes, he could see every detail of her pink lace bra through her shirt. And her hard nipples.

At least this was his last class of the week, and if she insisted on putting herself on display, he could leave the castle for a few hours and distract himself at a Muggle pub. Normally he didn't have an issue finding a woman to entertain for the night when he went out. He might not be the best looking but between his skills in reading people and his silky voice, women seemed to fall over him.

He let the door slam behind him as he made his way to the front of the room. Turning towards the class, he about had a stroke when he saw Miss Granger in her usual seat in the front row. She had her robes on like normal, but her shirt was unbuttoned and almost transparent again. This time her bra was a Slytherin green.

He forced his eyes not to stay on her. Already prepared for her antics, he pulled a stack of parchment from his desk and sent them hovering to the class. There was no way he would make it through the hour if he had to stand in front of her and try to teach. And his students would probably get the wrong idea if their professor had an erection whilst talking about different ways to block hexes.

"Due to the poor performance on your last essays, you will complete this quiz by the end of class. One would think that after seven years of magical education you would be smarter. But since you're not…" he allowed himself to trail off as he magicked the quizzes onto their desks. "There will be no need for your wand, your books, or for you to talk. You may begin. Now."

Moving behind his desk, he sat down and pulled a stack of second year's essays towards him. The increase in classes with the university-level courses added on had made it hard to keep up with grading. He had taken to giving more quizzes just so he had time to grade the essays whilst his students were in class. The classroom was quiet, save for the sound of quills scratching and he glanced up to make sure everyone had their eyes on their own paper.

His eyes landed on Miss Granger and he almost choked.

She had shortened her skirt well beyond the dress code. Her legs were spread wide, one of them propped on the leg of the desk. Her knickers were on full display. They were the same colour as her bra and had a wet spot on the gusset. He was staring at her when her fingers slowly moved over her sex and rubbed lightly. His eyes jumped to hers and she winked at him as she captured his gaze.

Severus! Stop looking at her! She is your student for Merlin's sake. Adult or not, you do not have relations with your students.

He ripped his eyes from hers and willed his cock to deflate as he looked around the room at her classmates. They all had their heads down and were focused on their assignment. He glanced at the small clock on his desk. Only thirty more minutes of torture and then she would be gone.

Movement caught his eye and he saw she was touching herself again. He refused to watch and forced his eyes back to the essay before him. If only it was something more interesting than how to fight off pixies. The idiot hadn't even tried, just copied the instructions from the textbook and changed it a small amount. He wrote a large T at the top when he heard a chair move against the stone floor and he looked up.

Hermione stood up and approached his desk. Leaning over, she gave him a full view of her cleavage and he bit back the groan that wanted to escape. He could smell her arousal on the hand she placed next to his and he wanted to put it in his mouth and lick it clean. Damn vixen was going to be the death of him.

"Sir, I need to use the restroom," she whispered, her voice so quiet it wouldn't carry. "I have needs to take care of."

Somehow his cock hardened even more and he knew without a doubt he would be thinking about her as he wanked that night. Not trusting himself to speak, he nodded then watched as she exited his classroom.

If she kept her activities up, it was going to be a long fucking year.

10 Oct 1998

Hermione settled into the table at the Three Broomsticks with Harry and Ron, thankful to be out of the cold. As much as she liked being out of the castle, it wasn't as much fun when the weather was so nasty. She had just taken a drink of her Butterbeer when her Dark Mark began to burn.

Hoping that the Dark Lord would be quick, she told the boys she needed the loo and walked towards the back of the pub. As soon as she turned the corner to the hallway that led to the bathrooms, she opened the back door and a hand grabbed her, slamming her against the back wall.

A nasty hex was on the tip of her tongue when she recognized Bellatrix's wild hair. Before she could register what was happening, their lips were pressed together and Bella was working her tongue into her mouth. Groaning, Hermione pulled the older witch closer, grabbing her arse as she deepened the kiss.

"I've missed you, pet," Bellatrix cooed into her ear.

"I felt the summons," Hermione said, knowing they needed to leave right away and not keep the Dark Lord waiting. "We need to go."

"He did that for me," Bella explained. "I have a job that needs to be done and you're the only one that can do it."

She pulled a package out of her robes and opened it. It contained the opal necklace Hermione had seen in Borgin and Burkes over the summer. The magic that she had felt from it before had changed, though she didn't recognise what it was. All she knew was that it was Dark and sensual. The Dark Magic was radiating off it and Hermione's already damp knickers were instantly soaked.

"I changed the curse on it. It will kill anyone who touches it, unless they have a Dark Mark."

"What happens if we touch it?" Hermione asked.

"Feel what it's doing to you now and multiply that by a hundred. Place this around your neck, pet, and you wouldn't be able to stop fucking until you removed it."

"What do you need me to do with it?"

"Give it to the next Hogwarts student you see. You'll need to Imperio them so they don't touch it. But they need to give it to Dumbledore"

Hermione felt a shiver of excitement go through her. "Dumbledore? You want to kill–"

"Our Lord wants it done. You'll do it for him, won't you, my pet?"

Hermione nodded and took the package, rewrapping the paper so Dumbledore wouldn't see what it was right away. Before she went back into the pub, Bella asked her how seducing Snape was going and Hermione shook her head, explaining that it was harder than she thought it would be.

"Maybe you'll get lucky and he'll touch the necklace. That will break him." Bella gave her another searing kiss before pushing her towards the door.

Hermione entered the building again, thankful that the exchange with Bellatrix had only taken a couple of minutes. She walked into the women's restroom and within seconds, Katie Bell entered. Somehow the popular final year student was not surrounded by her friends and Hermione didn't waste time.

Before her housemate could get her bearings, Hermione cast the Imperius Curse and gave Katie the instructions on what to do, including waiting a few minutes to return to her friends.

Leaving the bathroom, she made it to her table just as Ron was commenting about the barmaid, causing her to make a snide comment about it. Ron glared at her before looking back into his half-empty glass of firewhisky, clearly embarrassed. The two boys looked so down in the dumps, she wasn't even sure they had noticed she'd left the table. As soon as Harry finished his Butterbeer, she asked if they wanted to return to Hogwarts.

She was nervous as they put their cloaks back on and ended up leaving the pub right behind Katie Bell. She knew her spell casting was superb, but she still couldn't help but worry that something would go wrong.

Her stomach just about fell out of her arse when she saw Katie's friend grab for the package and it fell to the ground. She almost ran forward to pick up the necklace when she remembered that she had a part to play. Harry went to find a professor and Ron was standing there with his mouth hanging open so she went to Katie's friend, Leanne, to pretend to comfort her even though she wanted to hex the bitch.

Why couldn't she have just left well enough alone and let Katie carry the necklace to the castle like she'd be instructed to do? Now the necklace would never make it to Dumbledore and Hermione would have to answer to the Dark Lord about what happened. She tried to push that fear away and just focus on the present.

They followed Hagrid back to the castle and she was surprised to find out from Professor McGonagall that Draco had not been in Hogsmeade. Instead, their professor had made him stay behind and finish his latest assignment. Evidently, being university students didn't give them any leeway when it came to getting their work done on time. She would need to have a talk with her friend about keeping up appearances. She had a feeling that if Draco had been in the village, it would have been him giving Katie the necklace instead of her. And now she had an idea of the task Draco had been given.

He was supposed to kill Dumbledore.

The trio was just leaving McGonagall's office when she heard her Head of House summon a house-elf to have them let her know when Professor Snape was back in the castle because she needed him to look at the curse that was on the necklace. Remembering what Bella had said about the way the jewellery would affect Death Eaters, she knew the time was right to close the deal with Snape.

But first, she needed to write Bellatrix and let her know their plan to give Dumbledore the necklace had failed.

Severus thanked Filch for bringing him the cursed necklace then practically shoved the caretaker from his office. The Dark Magic was radiating off the opals in waves and his cock was hard in a second. He'd seen the jewellery in Knockturn Alley before, but it had only been cursed to slowly kill Muggles. The curse on it now was much stronger and would kill anyone without a Dark Mark. He recognized Bellatrix's magic and shook his head.

It was one she had used many times before. If anyone with the Mark touched it, they would have a hard time not rutting the next person that walked by. He wrote down what he knew about the curse and possible ways to reverse it and sent it with an elf to Poppy. Since Miss Bell wasn't dead, he had to assume only the smallest amount of her skin had touched it. Still, it would take a long time for her to recover and any information he could give the Healer would help.

A knock sounded on his office door and he checked the blotter on his desk to make sure he hadn't missed a meeting with a student. His cock wasn't going to deflate until he came at least twice thanks to the necklace and it wouldn't do to have an erection whilst helping someone with their homework. The knock sounded again.

Since his schedule was clear he decided he'd just open the door, tell the snot-nosed brat to leave him alone and then go wank. Miss Granger had become more and more brazen in his lessons. The day before with her wet knickers in his house colours had been the furthest she'd gone but it was more than enough to drive him mad. He had never, nor would he ever touch a student, university level or not, but that didn't mean he couldn't think about the way she looked as he took care of the large problem between his thighs.

Marching over to his door, he threw it open, letting it slam against the wall.

"What?" he growled.

"Something the matter, professor?" Hermione asked, pushing her way past him and into his office.

"Leave," he demanded.

"No, thank you."

He stared at her in disbelief as she jumped up on his desk, her sexy, tight arse just inches from the cursed necklace. Severus stomped towards her but stopped as her scent filled his nose. She smelled like his Amortentia again. Fucking little minx! He startled as the door to his office slammed shut with the flick of her wrist and he felt silencing charms and locking wards go up.

"Get away from that necklace, Miss Granger. It's cursed and I'd hate to see Potter's little friend die."

He internally cursed as she spread her legs, her already short skirt riding up. He couldn't see her knickers, but fuck if he didn't want to drop to his knees before her and examine them, examine her. With his tongue. Or his cock. He wasn't fussed at the moment. He shook his head. The necklace was weakening his resolve to not give into her.

"If I don't move away from it are you going to spank me… Professor?" she purred out.

"Miss Granger, get off my desk and get out of my office. I don't want you here."

He needed her to leave. The pressure in his pants was almost painful now and her bare legs and cleavage weren't helping matters. She hopped off the desk and walked towards him. The top two buttons on her shirt were undone and he could see her tits. The way they moved, he didn't think she was wearing a bra.

Her hand reached out and gripped his cock through his trousers. He groaned deeply and thrust his hips into her hold before trying to pull his hips back. She didn't let go, only moved closer and pressed their bodies together.

"I think you do want me here, Professor." She leaned up so her lips were almost on his and her breath ghosted across his face with each word. "I think you want to bend me over your desk and slap my arse, turn it red whilst you fuck me." Hermione pushed against him, backing him up until he knocked into his door. "You want me on my knees before you, letting you fuck my mouth. Did you know I don't have a gag reflex?" Her hand tightened on his cock and he felt the precum starting to wet his pants. How did she know exactly what to say to turn him on more. Where had this sex kitten come from? He didn't know her well but even when he'd seen her outside of the castle when he was on Order business he'd never seen her act like this. "I can fulfil even your darkest desires, sir. Anal sex, potion play… or are you the kind of man who wants to share me with other men? Do you want to watch as they use me like the slut I am?" Her hand squeezed his cock with each suggestion.

"Miss Granger… Hermione," he choked out. She needed to leave or he was going to fuck her and he really didn't want to be the professor who fucked his student. "You need to–"

"I need to have you fuck me, sir," she cut him off.

She grabbed his hand with her free one and placed it under her skirt so his fingers rested on her pussy. Her bare pussy. She'd come to his office without undergarments of any kind. She was dripping wet and he couldn't stop himself from pushing two fingers inside. She was so tight around them that he closed his eyes, trying to find the strength he needed to pull back.

"See what you do to me, professor? I sit in your class and my cunt drips for you. I tried to show you yesterday how wet I was for you. Did you see it?"

"Yes!" he growled out against his will.

"Such a naughty professor, looking at his student's pussy during class. Do you remember how I went to the bathroom halfway through?"

"I do."

"I didn't go. Instead, I went into an empty room and fingered myself thinking about you."

He almost choked on his tongue. "Merlin."

He began to move his fingers inside her faster. He wanted to see what she looked like as she came. He knew it was wrong but he couldn't hold back anymore. She hooked her leg up over his hip and began to move against him.

"I cried out your name as I came. Did I mention I do that every night? Don't you want to see that?"

"Yes! Fuck. Is that what you want to hear?" He began to pump his fingers faster in and out of her, relishing the way she was beginning to flutter around him. "Do you want me to tell you that you get my dick hard? That I had to come back here after class and wank because I saw your green knickers and wanted to rip them off you and fuck you right there in front of everyone?"

"Oh gods, yes! I want that! I want you to use me, sir."

Severus' mind raced at her words. Clearly, she was not the stranger to sex that he'd thought she was. Logically he had known that she was well past coming of age, but he had never thought of her as a woman. But now, here, this was no innocent schoolgirl with a crush on her teacher. Hermione was a woman that knew what she wanted from a man and for some reason she wanted him. He moved his fingers, thumb pressing against her clit and fingers finding that spongy place deep inside her.

"Use you? Are you a little slut, Miss Granger?"

"You have no idea, Professor. But I'll be your slut if you want."

That was what he wanted. More than anything. Someone to be his. This wasn't exactly what he had in mind, but if he couldn't have a wife, at least he could have Hermione for the moment. A willing, self-proclaimed slut, ready to spread her thighs for him whenever he wanted. A tight cunt for him to fuck. He was going to wear her out.

"Come for me," he commanded her.

Her pussy instantly clamped down on his fingers and he felt the rush of her ecstasy as she came, his title falling from her lips. It was too much for him and he ripped his hand from her. Pulling out his wand, he banished his trousers to his desk. Picking the little witch up, he laid her on the rug in front of his fireplace and entered her still pulsing cunt in one thrust. She wrapped her legs around his waist and tilted her hips, allowing him to go deeper.

"Next time you come I want you to scream my name, witch. This little cunt you've been flashing… it's mine now."

"Fuck. It's yours. Use it! Use me."

He was pounding into her and his knees were burning from the rug but he didn't care. All that mattered was pumping her so full of his come that it would be leaking out of her for days. She'd been teasing him for weeks and now he wished he would have given in sooner. Her cunt was the tightest he'd ever had and now that he'd had it, he wanted to stay buried in it.

"I'm so close, sir," she said, her voice breathless.

"What do you need?" He yearned for her to tell him everything she needed, everything she wanted. He hoped to learn all her desires and fulfil each one. "Tell me."

"Pinch my nipples. Hard. Make me hurt."

He wandlessly banished her shirt to his desk and his hips faltered as her tits were exposed to him. They were perfectly shaped and her nipples were darker than he'd imagined over the last few weeks. Leaning down, he took one in her mouth. She moaned as he sucked hard. Switching to the other side, he began to move his hips again. He gave a hard thrust and bit down on the nipple in his mouth.

"Yes, Severus! Just like that."

His name on her lips was too much for him. He had to come. Bracing himself on his elbows, he took one of her tits in each of his hands. Gripping her nipples between this thumb and forefingers, he tugged and twisted as he slammed into her.

Her whole body went stiff and her cunt threatened to snap his dick in half as she screamed his name. Her pussy seemed to explode around him, soaking his crotch and the rug below him. Letting go of his restraint, he let his orgasm take over.

"I'm coming," he cried out.

Her legs tightened around his hips and pulled him in as deep as he could go as he spilt inside her. He wasn't sure he'd ever come so much. Collapsing on top of her, he stilled for a moment until he realised she probably couldn't breathe.

He went to pull out, his cock still hard thanks to the Dark Magic in the room, but she kept her legs around him, not letting him go. Instead, he rolled them until she was sprawled on top of him.

"Give me a few moments to catch my breath, Severus, then we're doing that again."

11 Oct 1998

Severus pretended to be asleep as he watched Hermione get dressed. They'd fucked all night, the power of the necklace giving him the stamina of a teenager instead of a man in his mid-thirties. He could still feel it coursing through his veins pushing him to take her one more time but he resisted. It was far enough away from him that he could bury his need for her body behind his Occlumency shields and let her get dressed. He smirked as she picked up the undershirt he had been wearing the night before and brought it to her nose, inhaling deeply.

He felt a second's irritation as she slipped it over her head. What kind of witch fucks a man then steals his clothing? She sniffed it again and he felt something in his chest tug at the thought that maybe she just wanted to keep something with her that smelled like him.

He closed his eyes as she walked out of his rooms, torn between disgust at what he'd done and already wanting to do it again.

A/N: YAY! Severus is finally in the story! He plays a much larger part going forward.