"No, no, NO! Gods, no, stop, please stop, please stop!"
"Try to be more… open to new experiences, Miss Granger," he chuckled. As the pressure increased, Hermione felt her ring of muscles being slowly forced open. It kept spreading and spreading, stretching further, uncomfortably tight, and he was still not in.
"Wow, this looks so very hot, Hermione, you should see how sexy your asshole looks while opening up," Pansy commented, leaning closer with an eager, happy look on her face. Hermione could not fathom how her classmate could enjoy her torment so much. Her gleeful comments made her feel even more self-conscious and humiliated about everything Professor Snape was doing to her.
"No, Pansy, please don't do this, please stop looking…"
"Don't worry Hermione, it looks great, no need to feel ashamed. You're so pretty like this, all wet, naughty and enjoying yourself."
Hermione wanted to protest that she was as far from having fun as she could be, but the gradually increasing tension against her anus demanded all her attention. "Professor, Stop, please, stop, STOP, STOP! It's too big, it's too much, please! It won't fit, it's too big, it's too big! Please… Pheee-leaaas -EEEEEA!"
Finally the terrible increasing pressure crested, and her abused asshole opened up wide enough for the potions master to force the head of his penis inside. It was hard, hot, uncomfortably tight, terribly humiliating. It felt wrong, his massive grith lodged in her ring of muscle, keeping her open.
"Now, now, no need to scream like that," Professor Snape told her jovially. "There, the head is already in. See? I told you it would fit."
SSSSS
Severus had chosen the dildo to prepare Miss Granger's ass with great care. He found no pleasure in injuring or hurting his unwilling little sextoys, no. Any brute could do that. He loved keeping them on the edge of fear, desperation, humiliation and pleasure. The vibrator he used had been large enough that Miss Granger's asshole was properly warmed up to be able to accommodate his cock, but not big enough to make the process too easy. He wanted her to feel discomfort, wanted her hole to hug his cock tightly, he wanted to make sure that his dick would force her asshole to stretch further.
Making her cum around his cock would be so, so much sweater, if she found the way he impaled her unpleasant, and Severus loved the power rush that came with it.
He was soaking up the girls desperate screams and wild thrashing; it was simply divine. Gryffindors and their lovely fiery fighting spirit. It made it difficult to resist the urge to just slam himself balls-deep in her ass, he wanted to let her savour her fear and desperation. Nice and slow to draw out her terror and make her scream.
He couldn't decide what was more arousing; her desperate flailing, her sweet screams or the view of her asshole parting as he pushed his cock inside her. Severus was surprised how much he loved the visual, it was probably the most beautiful thing he ever saw. His mighty cock forcing her tight little asshole open was truly a sight for the gods. He wanted to see it again.
HHHHH
"There you go… in and in it goes. What a naughty little girl you are, Miss Granger, having your ass fucked by your Potions Professor. I can tell how much you are enjoying it, I feel so welcome in your tight hot asshole. Do you feel me sliding in? Can you feel being filled?"
Hermione could indeed feel it, and she hated it. She hated how defenceless she was, how she could do nothing but take it, as Professor Snape pushed his hard length deeper and deeper in her, as if she was nothing more than a hole for him to use. She hated the fullness, the stretching, the humiliation.
"Please… please stop, it's too much, it's too big…"
"My sympathies, Miss Granger, I regret having to do this," he told her tauntingly. "But we do need to replace the vials you destroyed. I know that taking something this formidable in your ass on the first time can be difficult, but you've always been an eager student, up for a real challenge. Not to worry, we'll get there. See? We are nearly halfway, and up and up it goes. You should see how beautiful your hungry little asshole is, swallowing my monster cock."
Hermione whimpered as Professor Snape kept pushing himself deeper and deeper, ever so slowly. It felt like her entire world has shrunk down on the horrible, humiliating sensation of his massive grith filling her rectum.
"STOP! Please stop! Please take it out, take it out!… I don't want to, I don't want to…"
"That's the spirit, that's the kind of desperation we need," he groaned. "Only two more inches to go… there just a little bit more… we are nearly there." With a great grunt, he gave his hips a final thrust, and Hermione could feel his balls slamming against her. She whimpered, as Professor Snape draped himself against her back, whispering in her ear in a fake, loving voice.
"There, I told you you could do it, Miss Granger. You feel excellent around my cock, little girl, so perfect as if you were made for this. What a lovely cocksleeve you are."
"Please… Please take it out, please sir, I hate it, I hate it so much…"
"Well, that's the whole point, isn't it?" he chuckled.
"I think you should feel proud Hermione," Pansy said, looking up at her from she was kneeling on the floor. "You just took a giant cock in your asshole on the first try, not everyone can do that. Maybe if you could see it you would feel better about it, it looks absolutely gorgeous how wide it stretches you. It's incredibly sexy how kinky you are," she said, reaching out a hand towards her. Hermione thought she would sink through the floor in shame, being inspected by Pansy like that while she was being raped was incredibly humiliating.
Pansy ran her fingers along Hermione's lips, tickling, teasing, stopping short of touching Professor Snape. "Tell me, Hermione, how does it feel? Do you like how full it makes you? What is it like to finally get Professor Snape's approval? You've been dying to get it since our first lesson. You must be so glad."
"Stop… please, both of you… please stop."
"Oh, but Miss Granger, I'm just getting started. Try to relax and enjoy the knowledge that you found something you are really good at, you make an excellent cocksleeve."
SSSSS
Severus slowly withdrew his cock from the heavenly heat of his pupil's asshole. He pulled all the way out; Miss Granger made an adorable groaning sound as the head of his dick popped free. Forcing himself inside her had been so beautiful that he wanted to watch it again, so he pressed his tip against her already closing little hole, and pushed.

It earned him an exquisite whimper as his cock stretched the girl's asshole open again, and the mere sight made his balls twitch in pleasure.
"Yesss… what a lovely fuckhole," he hissed as he sunk into her wet, deliciously unwilling heat again. Gods, the girl could struggle. Severus pushed himself into her protesting little body to his balls, grinding his pelvis against her; it seemed to distress the girl, which made it all the more fun for him.
"So good, so tight."
Severus withdrew all the way again. He had to pull harder to get the tip of his cock out. It made Miss Granger whine again so sweetly, so invitingly. He gave her just a few seconds to relax before he pressed his dick against her trembling, scared little asshole, and started to push back inside again. Feeling her muscle ring around the tip of his cock felt divine, it was massaging the head just the right way. Fuck, it was beautiful how it opened up to swallow him, her ass was hugging him so good.
"You feel so good around my cock, Miss Granger, such a good little sextoy, such a perfect cocksleeve."
HHHHH
Professor Snape kept pulling out of her and forcing his way inside her rectum again and again, ignoring her pleas for him stop. Hermione hated every second of it, but the worst was the head of his penis, it stretched her protesting muscles further when he pulled out, and it felt the most unpleasant when he forced her abused anus open again.
She hated how he pressed his entire body against her, in a grotesque parody of gentle, intimate love. Hermione was angry at herself that she still found the sensation of Professor Snape's hot breath against her neck and his groans and amused chuckle in her ear so enticing. How could it still make her stomach flutter in excitement when she despised it so much?
In and out, in and out, he pushed himself inside her, using her helpless body for his own pleasure, and she was powerless to stop him. In and out, slowly, in and out he went, again and again, and all Hemione could do is take it.
"Please stop… please, Professor, Please don't do this, please, take it out, it feels horrible, please! Please!"
"Oh, don't worry Hermione, I'm here to help you, I'll make you feel good," Pansy said with a malevolent smile, going up from her sitting on her heels to kneeling in front of Hermione. She lowered her face towards folds, looking up to watch Hermione's reaction.
Her heart skipped a beat. No, no, no… not again, she couldn't… she wouldn't enjoy being raped.
"No… No, NO! Pansy, no, please don't please not again! Pansy, stop, please stop!" Her classmate ignored her pleas, and flicked her warm, agile little tong against Hermione's sensitive skin. Hermione thought she knew what to expect, but the intensity of the sensation took her breath away and made her knees buckle.

"It sounds like you do enjoy being used, Miss Granger. What a naughty little girl," Professor Snape chuckled.
Hermione wanted to protest, but Pansy started licking her again, gently yet firmly, stroking her clit up and down, up and down, with steady board but solid stokes.
"N—oh, AH!" she managed to grunt.
SSSSS
When Miss Parkinson started licking Miss Granger's lovely little twat again, her asshole contracted around Severus cock unexpectedly. It made him groan in pleasure, it felt so, so good. Perhaps, it was time to stop fooling around and start to seriously fuck her delicious ass, she deserved nothing less.
Judging by the sounds she was making, Miss Parkinson was having the time of her life. Severus wanted to make sure he would get plenty of time to enjoy a good anal fuck, he didn't want Miss Granger milking him too soon with another intense orgasm. It wasn't every day that he got to enjoy the Gryffindor princess writhing on his cock, and he wanted to make the most of it. Besides, an unwilling, ashamed and humiliated little witch moaning and begging to be allowed to cum was one of the most arousing experiences.
"Miss Parkinson, we are far from done here. Do not allow Mis Granger to cum again until the vials are filled. For all her protests, she seems to enjoy herself quite a bit."
"Yes, of course, sir. Anything to help."
HHHHH
It was a small mercy that Professor Snape had stopped pulling out all the way from her when he started to pick up a faster speed, raping her at a steady rhythm, his massive length forcing in's way inside her abused rectum over and over. In and out, in and out he went, the terrible stretching sensation filling her. It was degrading and vile.
All the while Pansy was licking her pussy with great enthusiasm and skill, her tong stroking Hermione's clit with just the right amount of pressure, just a bit too slow to be perfect, which left Hermione wanting for more. Up and down, up and down, each stroke caused her clit to radiate a wonderful, unwanted, expectant, tingling sensation through her like a heartbeat. The relentless teasing sent pulses of pleasure coursing through her. Hermione's lips were prickling as blood flooded them with her rising arousal. She hated how her body betrayed her, how her classmate made her pool with hot arousal against her will. It made her want to sink through the floor in shame that she couldn't help moaning as Professor Snape kept raping her back there, that she would react like that to something so depraved.
Professor Snape's penis kept sliding in and out of her rectum, the humiliating, unpleasant fullness present at the same time as her slowly rising arousal. In and out, the massive grith tormenting her, up and down, pleasure washing through her. In and out, up and down, over and over.
"Stop… please, please don't… please…"
"I don't think you actually want us to stop, Miss Granger," Professor Snape whispered in her ear between two penetrations. Hermione hated how his hot breath on her neck still made her stomach tighten in excitement.
"In fact," he continued, emphasising his words by powerful thrusts "I believe - that you - quite enjoy - having - my - monster cock - in your ass. - Who - would have- thought -that - the tight laced, - studious - Head Girl - was such a - perverted little girl, -taking - so much - pleasure - in being - a cocksleeve."
Hermione felt as Pansy slid her fingers though her wet folds, pushing two digits inside her. Having something lodged inside both of her pussy and abused rectum made her feel terribly full. It was uncomfortable, the different motions, intrusions, touches all over her genitals made her feel like she was some toy, poked, prodded, played with. It was objectifying, it made her shame and helplessness sharpen, making blood rush to her face.
"Pansy, please do- Ah!" The Slytherin girl chose that moment to curl her fingers inside Hermione, pressing down against her front wall, making her plea turn into a moan.
"With pleasure," Pansy chuckled. "Gods Hermione, you're so responsive, so very wet. You must be having so much fun. What a kinky, shameless, perverted girl."
SSSSS
Severus has never experienced someone else fingering his unwilling sextoy while he was fucking their delicious asshole. He was surprised by how much he liked the sensation of Miss Parkinson's fingers moving in Miss Granger's twat. It was surprising, exciting, unexpected. There was also that delicious, added degradation for the Gryffindor, enjoying being toyed with. She was clearly distressed and ashamed of it, her face a brilliant flaming red.
Fuck, she was such a perfect little sexdoll, such a good little hole to use.
HHHHH
Pansy returned her attention to licking Hermione, her tong flicking against her clit, up and down, up and down. It was wrong, it was unwanted, but it was so, so good. It made Hermione pool with pleasure, she could feel a trembling, expectant sensation inside her. There was still the unpleasant fullness and stretching of Professor Snape's penis filling her, there was the humiliation of feeling like a toy for the Slytherins to play with, yet the bliss radiating from clit was impossible to ignore.
In and out, being used, up and down, being forced to feel the pleasure. In and out, up and down. As Pansy kept licking, Hermione's arousal rose, all the vile, wonderful, unwanted sensation growing inside her with a tingling expectant need, pulling her muscles tighter against the fingers buried in her. It made the rising tension inside all the more prominent. Terrible, exciting, degrading bliss.
When the sensation of tightening started to spread from deep inside her core towards the surface Hermione knew she was heading for another orgasm, even though Professor Snape was still raping her bum, his massive grith keeping her anus uncomfortably open and full. She wanted to die of shame. At least it would be finally over.
Pansy must have noticed her approaching orgasm too, because she suddenly stopped licking her clit. Instead she focused on the area right around it, so, so close, yet so far away. Hermione let out a frustrated growl as she felt her arousal receding, the pool of pleasure deep inside her trickling away.
"Is there something you wanted, Miss Granger?" Professor Snape asked her with an amused chuckle.
"No… Stop… please stop doing this…"
"No? Well then. Perhaps you should try to focus on what you are feeling, it would be such a terrible pity if you forgot what it feels like to have my cock buried in your ass to the balls."
Hermione was about to protest again, but Pansy didn't give her a chance. She started licking Hermione's clit again, making Hermione moan with the unexpected surge of pleasure. Her knees buckled from the intensity of the sensation, and her arousal started to mount once again, even faster than before. Up and down, up and down, her clit radiated pleasure, the fingers inside her kept rubbing her front wall, causing a numb, prickling, tense sensation of pure need.
In and out, in and out the horrible fullness, up and down the waves of pleasure crashed into her feeling of humiliation. In no time she felt fresh, hot wetness pool in her privates, the familiar, unwanted, sweet, horrid, heavenly sensation of expectant tingling tension pulling her pussy tighter on her classmate's fingers started again. It was spreading outwards once more, increasing with every lick promising and intense, humiliating, wonderful orgasm.
It felt like she was just a hair away from tumbling over the edge again when Pansy stopped licking her clit again, and Hermione came crashing down from her sweet, tense heigh.
"Not yet," Pansy chuckled gleefully before planting her mouth around Hermione's clit, giving it a gentle suck. It didn't just feel good; if having her clit licked felt like a wave of pleasure, this was a torrent, turning her nerves on fire.
Hermione let her head fall back against Professor Snape and let out a loud moan, unable to stop herself. "That's a good, kinky little toy, taking pleasure in being used and fucked in the ass," Professor Snape whispered in her ear. It sent an electric current of equal measure shame and excitement racing down her spine. It blended with the liquid fire of pleasure radiating from her clit, and just like that, Hermione felt herself tightening around Pansy's fingers again, her orgasm just a heartbeat away.
And Pansy stopped again, and so did the rising tide of Hermione's pleasure. Hermione wanted to cry in shame and frustrated anger, she hated how much she needed release after coming so close.
SSSSS
Severus was revelling in Miss Granger's shame. It felt nearly as good as her tight asshole wrapped around his cock. Certainly, her hatred for having his dick forced deep inside her was delightful, but her moans of pleasure were saturated with sheer humiliation. It was exquisite.
It had been a long time for Severus that he had enjoyed fucking anyone this much, the little Gryffindor was so responsive. She still seemed to melt with shame desire whenever he whispered in her ear. There was something heady about making the proud, smart, studious girl tremble in humiliation and pleasure from being called a cocksleeve. Hell she reacted even when he was just groaning in her ear in pleasure.
"Tell me, Miss Granger how much you enjoy being my little cocksleeve? Tell me how much you like having your asshole stretched out around my dick?" Her entire body tensed up in reaction to his voice, and she let out a strangled moan. She probably thought she managed to stifle it. So, so cute.
HHHHH
Hermione was certain the they would drive her mad. "Nnn-ah, pleahhh-se stop… pl-Ah-se, take it AHout… please… I ha-AH-it…"
Hermione barely had time to catch her breath after her impending orgasm slipping through her fingers, and Pansy started licking her again, which made it incredibly difficult to form coherent words. In and out, a hot, dehumanising, hard length filling her rectum, up and down, up and down, wave after wave of hot tingling pleasure washing through her. It was wonderful, horrible, magnificent, humiliating. She hated it, she despised how what she wanted didn't matter, she loathed the feel of Professor Snape's massive penis inside her bum, and worst of all, she detested how the two Slytherins could force her to feel so, so good.
Pansy kept a steady rhythm, and the hated pleasure was rising inside Hermione again, her core pulsing with a prickling need for more. Up and down, with each flick of tong Hermione was pushed closer and closer to the edge. Hermione was so certain she would get there this time, all she needed was just a little bit longer. Up and down, up and down, up and – nothing, nothing and nothing, down, up and down.
Pansy missed just a few beats from the rhythm, and the release that was just out of Hermione's reach slipped away, but not her rising arousal. Up and down, wave after wave of washed though Hermione, making her privates throb with hot need. She could literally feel the blood pulsing in her netherlips with arousal, the her entire nether region producing fresh, hot wetness with each beat.
All that need and unwanted pleasure was mixed with the terrible sensation of Professor Snape forcing himself into her over and over, forcing her tight ring of muscles open. The unpleasant sensation of his penis sliding deep and deeper inside her should have been enough to turn her off, but it wasn't. The feeling radiating from her clit and the tension rising from her pussy as Pansy fingered her was just too good, and despite her predicament, despite her shame and the massive hardness invading her, Hermione was edging closer to an orgasm again against her will.
She could feel the tightening, deep inside her, as if her pussy was a zipper, being pulled close from within, heading for the outside with a heavenly, trembling tension.
As she was just about to come, just one more little rub away from release, Pansy stopped again. Instinctively, Hermione bucked her hips, trying to rub herself against the Slytherin's face to reach bliss.
"UH-ah, ha" she panted in disappointment as the tension inside her ebbed away, her orgasm receding again.
"No cheating, Hermione," Pansy giggled. "You haven't earned the right to cum yet. Usually, you are such a good, rule-abiding girl. Try to be good now, or Professor Snape may have to punish you."
"Apparently, having her asshole stretched around a monster cock brings out Miss Granger's naughty side," Professor Snape chuckled. "Who would have thought that having a dick in her sweet little bum would make her so desperate to cum."
Hermione wanted to protest, but Pansy started sucking on her clit again, and her attention was consumed by the torrent of pleasure flooding her, lifting her towards release as if her body could float on the surge to reach her orgasm.
She knew she probably shouldn't have been surprised that the Slytherin girl stopped again just before Hermione could have tumbled over the edge, leaving Hermione aching with arousal and need. It was maddening, it was a wonderful, humiliating torture, and they gave her no rest.
Her professor was using her helpless body to satisfy his own pleasure while Pansy kept licking and teasing her, pushing Hermione close to the edge but stopping before she could reach the peak again and again. Hermione wasn't sure how many times she had been pushed to the verge of orgasm yet being denied, she lost count somewhere after seven.
Despite how much she hated being helpless, tied up, how much she despised having her ass violated, she became one trembling mess of need from the relentless teasing. She hasn't stopped hating the sensation of her ring of muscles being forced open, or the feeling of the invading penis filling her, the objectifying way the two Slytherins treated her, but her need to orgasm grew to a point where everything else seemed irrelevant, she has never needed anything so badly before.
"Please… please…" she begged just as Pansy denied her another orgasm.
"Please what, Miss Granger? Usually you are so eager to talk, so eloquent. Surely you are capable of putting it into words what you want?" Professor Snape taunted.
Hermione wanted to sink through the floor in shame, she couldn't believe that she was going to beg Professor Snape for an orgasm while he was still raping her ass. But she couldn't take it any longer, she had to, come. "Please… please let me come. Please," Hermione forced herself to say.
"Now, was that so difficult?" he asked gleefully, grinding his hip against her. "You have my permission to cum, Miss Granger."
Hermione let out a shuddering sigh of relief, and gave herself over the sensation of Pansy licking her clit. She welcomed the waves of pleasure washing through her, feeding into a rising tide of sensation, lifting her towards her orgasm.
And when she was about to reach her peak, Pansy stopped again. This time Hermione had been so very certain that she would be allowed to orgasm, the sudden break in the stimulation was extremely jarring, she wanted to cry and scream with frustration, anger and arousal.
"You said I could orgasm! You promised!" Hermione exclaimed. "Please, I need to… I need to…"
"Then why don't you, Miss Granger?" Professor Snape asked, chuckling in her ear. "No one's stopping you. Cum, if you want to."
She wanted to, desperately needed to. Only she couldn't, not while she was tied up, not without help. Not without… Pansy's help. Her stomach twisted with utter humiliation and shame, but Hermione swallowed what little was left of her pride and said, "Pansy, please… please help me."
"Oh, now you want me to make you cum Hermione?"
"Please."
"Say it."
"Please… Pansy, please make -Ah- me come. Ple-AH-ase, I beg you."
"Well, I suppose you do swing that way, after all," the other girl chuckled maliciously, before leaning closer to Hermione, placing her lips around her clit. Hermione let out a trembling breath.
SSSSS
Miss Granger was going to be the death of him. The little moans, her pleas for them to stop, her struggling… it was so, so good. Her tight little asshole fit around his cock like a perfect, hot velvet glove, it was the perfect hole to fuck.
Oh, and she hated it so, so much. It made his blood race and balls tighten in pleasure. He hasn't had such wonderful sex in ages. The mixture of her shame, revulsion and arousal was a delicious cocktail Severus couldn't get enough of.
Not wanting to miss out on the exquisite sensation of her asshole pulsing around his cock, milking every drop of his cum as she orgasmed, Severus forced himself deep inside her unwilling anus to the balls, and stayed there. He draped his right arm around her torso, holding her body tightly against his, his palm cupping her left breast, teasing her nipple into a hard pebble.
Miss Granger probably didn't notice that she dropped her head back against Severus' chest as she was about to come, her beautiful neck exposed. Seeing all his love bites on her skin unleased something deep inside Severus, something primal and wild. His marks, on his sexdoll. His toy, his property. It didn't just make his stomach flutter in excitement, it made him flush with adrenaline as if a broom went into an unexpected nose-dive, his entire body feeling light and tingling with thrill.
He wanted to mark her again. Because he could, because she could not stop him, because she hated loving it. Choosing the next place carefully on the left side of her neck that only had the one mark, he lowered his lips to her skin.
HHHHH
Professor Snape started sucking on the sensitive skin on her neck, his hair tickling her softly, his hot breath fanning her neck. The unexpected sensation sent a jolt of pleasure down her spine, a current of excitement, bliss and shame dripping electric arousal right into her core. He pulled her body tightly against his, his fingers teasing, stroking her nipple, adding a sweet, unwanted, delicious, enticing treacle to the sensations.
The same time as Pansy started licking her clit again, awakening fiery tide of pulsing, tingling pleasure. The fingers buried inside her pressed down on her front wall, awakening a trembling, expectant tension of need. The different waves of sensations pooled inside her into a single tide of arousal. It pulled her muscles tight with the sweet promise of an orgasm, her entire body trembling with the mounting tension as the tightening sensation spread through her with an increasing intensity.
This time, no one stopped, and when the tide inside her crested, Hermione came. Her orgasm washed through her in intense waves of pure bliss, her muscles tightening and relaxing, clamping down around the hard penis forced into her rectum, pulsing around her classmates fingers intruding in her. Her muscles kept contracting, riding waves of pleasure. The tightening made the massive erection inside her feel even bigger, the sensation of fullness and being used even more pronounced.
It was heaven and hell at the same time, and Hermione couldn't tell where one started and the other ended. The sensation was wonderful but unwanted, mixed with her utter humiliation; it felt like the two Slytherins were everywhere, touching every part of her body, using her like she was just an object without will, some toy.
He was pressed against her entire back, the innumerable small buttons digging into her, there was an arm hugging her from, a hand playing with her breast, her nipple teased by delicate, deft fingers. Her ass was filled with a heavy, hard, unpleasant weight, her pussy fingered… and Pansy kept licking, licking and licking, making wave after wave of intense orgasm pulsing through her, liquid pleasure flooding her entire body.
Professor Snape came too, growling against her neck. Hermione could feel his penis throbbing inside her as he shot hot ropes of his semen deep inside her bowls. She knew she would probably never have an orgasm this intense again; and hopefully never another so terrible either.

SSSSS
Severus stayed buried in Miss Granger while her tight ass contracted around him as she rode the waves of her orgasm. She felt so, so good around his dick, hugging him so, so tight, the perfect little cocksleeve. The power rush of forcing her to milk his cock with her unwilling asshole like that was exquisite, he wished the sensation would never stop.
He emptied his balls into her helpless body, filling her bowls with his hot seed, that's what she was for. Slowly, as she came off from her height her loud moans quieted to little whimpers, the powerful contractions of her asshole that kept massaging his dick softened to gentle twitches.
Severus pulled out halfway with a soft sight. He grabbed his still semi-erect cock, massaging it, milking the very last drops of his cum, depositing it in Miss Granger's abused asshole. Where it belonged. Only when he was certain that there was nothing left did he pull out all the way.
Severus pulled the Gryffindor's asscheeks apart, marvelling at her butthole still twitching so enticingly in the aftershocks of her orgasm, as if winking at him. Beautiful. Soon enough he could see as the contractions forced his cum out of her. It was hot as fuck, her freshly raped asshole dripping with his hot seed. He genuinely hoped he would get a chance to do it again. So, so pretty.

Severus cast a cleaning charm on his cock before tucking it back into his underpants.
HHHHH
As the intense waves of her orgasm quieted down, Hermione was completely spent. She felt as Professor Snape slowly withdrew his hard length from her abused bum, and she sighed in relief as her ring of muscles were finally allowed to close again; she had hated the sensation of something stuck inside her.
Pansy got to her feet, showing Hermione her hand, that was glistening with Hermione's wetness, running down her wrist, soaking the cuff of her uniform shirt.
"My, Hermione, you made a big mess," she giggled. The taunting made blood rush to her face in shame. "You must have really enjoyed your detention. You are such a pervert," she added before using her wand to clean her hand.
Hermione could feel Professor Snape's hot seed slowly trickling back out of her. She couldn't really stop it. She found the sensation of the sticky fluid slowly oozing from her anus, tricking down her bum terribly degrading. She wished she could free her hands to clean herself up, to wipe away the reminder of what he did to her, but her restraints held her in place. She hated how her abusers were dressed and clean, while she looked and felt… used.
"Thank you, for your cooperation, Miss Parkinson. Your contribution was most valuable," Professor Snape drawled, lifting one of the vials from the table to examine it. It was surprisingly beautiful, it looked like as if it had been filled with the darkness between the stars, shards of sunlight like glitter mixed into it. Hermine noticed that the ring of glowing glyphs disappeared, so did the strange collar with the same glowing symbols from around her neck.
"Any time, sir," her classmate replied in an oily voice.
"You are dismissed. I'm afraid Miss Granger here needs a bit more time to… compose herself," Professor Snape added with a smirk.
"Of course. Thank you sir, have a pleasant evening," Pansy said, giving Hermione a gleeful smile before she left, closing the door behind her.
SSSSS
Severus watched the tied up girl with a satisfied smirk as he replaced the vial into the rack. He absolutely loved the sight of his cum oozing her asshole. He grabbed her cheeks, pulling them apart, and used a finger to scoop up some of his cum, pushing it back into her asshole. Where it belonged.

It earned him a cute little shriek, her entire body attempting to jerk away. It was an amusingly energetic response, especially how pliant the girl seemed to be after her orgasm. Miss Granger must have really hated having her asshole touched, which made her so much fun to toy with. Such a pretty, entertaining little doll.
A well-used little cocksleeve, she was so pretty like that, helpless, tied up marked. He especially enjoyed the love bites. The contrast of the deep colour against her creamy soft skin was beautiful, proof that he used her, marked her. They looked magnificent, he wished they would never fade. It made something pleasurable clench in his stomach, something thrilling, exciting.
As if drawn by like a magnet, Severus stepped closer to his pupil, his fingers tracing the marks gently. Miss Granger shivered, her entire body tensing up and relaxing. It forced his hot cum out of her again, it looked so enticing.
"Please stop… please, sir… please, no more." Her voice trembled with fear and the beginnings of what Severus thought was arousal. Or perhaps, was she afraid of enjoying his touch? What a perfect, exquisite sound, such a good little toy.
Truth to be told, Severus was spent, but her begging made him want keep going, keep her making those delicious sounds. Leaning closer, he whispered in her ear, "I'll decide when I'm done playing, my lovely little toy."
As he kept tracing his marks, she let out a small whimper. Her reaction made him chuckle; she did like her neck touched..
Severus had intended to let Miss Granger down, but for some reason he could not stop himself from touching the love bites on her neck, it was like a compulsion. There was something exhilarating about it. Four on the right side, arranged in a neat pattern. Two on the left. So much smooth, unmarred skin there. He wanted to mark her again. He needed to.
Severus leaned in, pressing his lips against the nape of Miss Granger's neck. He probably couldn't have stopped himself even if he wanted to. It didn't matter, he didn't want to stop, the mere idea of what he was about to do made him harden again.
He flicked his tong against her skin, placing gentle kisses on the spot until Miss Granger let out a soft, scared little moan. It was intoxicating. Severus started sucking on her skin, marking her as his. His property. His sexdoll, his rapetoy, his cocksleeve.
HHHHH
Hermione hated herself for how sensitive her neck was. After everything that happened, she should have hated even the idea of anyone leaning close to her. Yet, when she felt Professor Snape stroke her skin, a pleasant shiver ran down her spine, making her stomach flutter in excitement. She hated that he could still force her body to react like that. She was so tired, she shouldn't have felt anything at all.
She didn't want to enjoy it, but his hot breath felt so good when he leaned in and to her, and started sucking on her skin. She wanted to sink through the floor in shame.
Hermione felt magic, raw, powerful magic rising in wild, electric torrent, washing through her. It came out of nowhere, set her nerves on fire, it made pleasure drip right from her neck to her core in an unexpectedly intense wave. Her arousal rose suddenly and without warning. Her knees buckled under the onslaught and to her utter mortification, she came, her back arching, her muscles contracting and relaxing with waves of unwanted, heavenly, humiliating bliss.
SSSSS
Severus felt powerful magic wash over him; it was electrifying, overwhelming. It felt wild and alive and oh, so, so good. Miss Granger writhed in pleasure, moaning loudly as he marked her neck. She felt exquisite against him, her delightful moans of pleasure mixed heavily with shame, fear and helplessness. Severus felt as the wild magic sank into her skin, into the fresh mark on her neck. As the magic rushed out of him he came, his balls pulsing with powerful contraction. He was glad that he had already emptied himself inside the tied up girl, her asshole was a so much better place for his seed than his underpants.
When he lifted his head, they were both panting, out of breath. He had no idea what happened, he has never heard of anything like this. When he placed his hand on her stomach, he could feel the magic buzzing faintly under her skin, fading. Severus dragged his palm up, following the path of the fading power. He could not resist the urge to give Miss Granger's nipple a little squeeze, which earned him a cute little shriek of protest.

Eventually the power settled in the love bites on Miss Granger's neck. There were seven now; four on the right, three on the left. Seven. Seven was a powerful magical number, but what did all of this mean? Severus had no idea, but he did love the sight of those marks on her neck. He wished he could watch her reaction when she discovered them. Well… Severus was a powerful Legilimens. He literally could slip in her mind and watch the memory. He really hoped she would hate it.
And if he ever got the chance to fuck her again, he would place five more of his marks on her back, down along her spine. Twelve was an even more powerful number, and it would look gorgeous on her.
HHHHH
Hermione heard footsteps behind her, and Professor Snape walked around her into her field of vision, stopping in front of her with a serious expression.
"Miss Granger, do you know why Bottled Desperation is considered a dark potions ingredient even though it's most commonly used in healing and protective brews?" he asked, steepling his fingers.
For a moment, Hermione was stunned by the change of topic and… mood. It felt like as if she suddenly found herself in a grotesque parody of the usual lessons; his pose, intonation and attitude were exact the same. Except, Hermione was still naked, tied up, and could still feel his seed oozing out of her abused rectum, she could still feel the phantom sensation of his penis keeping her hole open, his mouth on her skin. She wondered if she would even be able to sit in any class without remembering what he had done to her.
"I don't know, sir," she replied. The question was something that would usually intrigue her, but she had no interest in playing games. She just wanted to leave.
SSSSS
"Bottled Desperation can be collected from two different sources," Severus explained, watching Miss Granger's reaction closely, "from a willing or an unwilling donor. In case a donor isn't volunteering, as you can imagine the collection itself is illegal; more often than not it involves the Cruciatus curse and a visit to St Mungo's. If the donor is volunteering, whatever is done to them has to be worse than the tragedy the potion in question is supposed to prevent, the extraction method needs to be severe enough that the donor would think 'I don't care anymore, just make it stop'. Bottled Desperation is used in extremely potent brews, usually were a life or even several lives are at stake. This means that willing donors very rarely survive collection."
Severus gave a few seconds for the girl to digest what he just said before he continued. "There is, however, a third, little known method: getting retrospective permission from a donor. Miss Parkinson is under the false impression that this," he said, gesturing at the vials, "is for a potion for the Dark Lord. He has, indeed requested a potion that would 'protect' his mind from Mr Potter. I'm, however, going to deliver a brew for him that will sever the connection between him and Mr Potter. This means that if the Dark Lord consumes this potion, when he is brought down, he won't drag Mr Potter with him through the veil. In short, Mr Potter will survive the Dark Lord's demise. Without the potion, they would both perish." He decided to omit the small fact that said potion only needed one vial of Bottled Desperation.
Severus watched as the lightbulb lit up in Miss Granger's eyes. He was absolutely certain that she would consider getting fucked in the ass an acceptable price for Mr Potter surviving the war, she was loyal to a fault. He was counting on it to keep him out of Azkaban. And if he miscalculated it… well, Albus did tell him to acquire the necessary ingredients by any means necessary, he could take the fall for this, though Severus highly doubted that it would come to that.
"I… I understand, sir."
He drew his wand and vanished the ropes that were holding her in place. The Head Girl crumpled to the floor, her muscles still and weak from her ordeal. With another flick of his wand, Severus returned her clothes to her, repairing her shirt in the process. Well, all her clothes, except for the black lace panties Miss Parkinson pocketed. He watched her getting dressed; she was clearly very uncomfortable with his attention, which made the show all the more fun for him. Finally, when she was ready, Severus returned her wand, hilt first.
"Miss Granger," he said, holding out one of the vials to her. "Take this. You and your friends are rather… adventure prone. Unfortunately, me and other Order members won't always be around to save Mr Potter, and being the brains of your little group, that task will fall onto you. Hold onto it until it's needed. Be advised that this is extremely high quality; use it carefully and sparingly."
She accepted the vial with a trembling hand.
"Thank you, sir."
Severus nodded in response. "You're dismissed."
He watched as she left, the dungeon door closing softly behind her. Giving her a vial would help convince Miss Granger that his motives were purely selfless, or at least, in service of the greater good and the war.
But a Slytherin always had more than one reason for doing anything. In Severus' case, he often had three or four.
Giving one phial to the girl still left eight for Severus to use as he pleased. One he already designated to use for a potion that would ensure that when the war ended, he would not need Albus's help or testimony to avoid going to Azkaban. Last time the Headmaster's help came with an extremely high price tag, and Severus learned his lesson.
Severus would also sell one or two vials. This was extremely high quality Bottled Desperation, it would fetch a small fortune on the black market, and he had the right contacts. When he started working at Hogwarts, Albus gave Severus a pitiful salary – his reasoning that Severus lacked experience and also received free housing and meals. Nearly nineteen years later he still had to see a pay rise. Severus strongly suspected that the pittance he got was another tool in Albus' toolbox to keep his potions master completely dependent on him, and stopping Severus from branching out and doing something he actually enjoyed or wanted to; like starting his own potion business. The sale price of two of those vials would set him up for a better carrier.
All in all, Severus had a rather productive day: paid an expensive debt, collected a rare and hard to get potion ingredient for saving Mr Potter, secured funding for his potions business, and had the best sex he has had in a decade, maybe longer.