"Get naked!" Harry yelled as soon as the door of the Room of Requirement closed behind them.
Hermione's sobbing increased and she trembled in fear while she stripped down.
"Please, Master!" she pleaded and fell to her knees. "I'm sorry! I'm sorry for what I said!"
Harry gave her a cold look and shook his head. "I'm sure. But you will be much sorrier soon enough."
He walked to a desk that the room provided and gestured to his slave to come to him.
"Bend over that desk!" he told her and the sobbing girl did as commanded.
"What-?" Hermione started to ask, but she stopped to scream in pain when Harry forcefully smacked her arse.
"AAHH!"
"Bend over, hands on the table, legs apart, and really arch your back!" Harry instructed her, and Hermione leaned forward until her boobs were pressed on the table while her firm butt was wriggling invitingly towards Harry.
"Yes, that's good." Harry said and asked the room to provide him with a wooden cane that materialized on the table in front of Hermione. She whimpered when she saw it, and Harry took the slim rod gave it a swoosh.
He then raised the cane and brought it down on the trembling girl's arse repeatedly.
"OOWW! OOWW! No, please! AAAHHH! Wait! AAAHHH!" Hermione wailed.
She thrashed around as much as she could while staying in position, and Harry enjoyed the sight of her bottom jiggling around adorably.
He didn't make her count out the strikes, and neither did he keep track of the number. He just continued the punishment of his slave, raining dozens of hard strikes down on her bottom cheeks until her arse was bright pink and covered with red welts and she was crying uncontrollably.
Not wanting to do too much damage to her body, Harry then lowered the cane reluctantly.
Hermione was still wailing and pleading, hardly intelligible anymore.
"Please-Ma-as-ter-aaahhh-oowww!"
"Shut up!" Harry shouted at the distraught girl, who promptly tried to stifle her sobs. She turned her tear-streaked face towards him, fear and desperation in her eyes.
Harry looked at her coldly. "Have you learnt your lesson? Or shall I continue with your pussy?"
"Please no!" she whimpered with a hoarse voice. "I've learnt my lesson. I promise!"
Harry exhaled deeply. "Fine. I will give you a chance to make up for your failings."
He stepped away and gathered some books on defensive magic from the cupboards in the room. He also picked up a quill and some rolls of parchment and laid everything on the table in front of Hermione.
"Now listen!" Harry said when he was done. "I wanted to do some more tournament preparation this afternoon. And despite what you did, we will do that. I want you to look through these books and list the defensive spells that will be most useful to me, including instructions on how to cast them. All the time, you will stay in this exact position!"
He paused for a moment, smirking at the sight of his sniffling slave before him. "I will try to learn some new spells in the meantime. And to make for your mistake, you will serve as - let's say as motivation for me. Whenever I make good progress or master a new spell, I'll celebrate by fucking your arse."
"Master, please no!" Hermione begged weakly, to no effect.
"Any questions?" Harry asked and slapped her sore butt again, enjoying her pained cry. "Good. Get to it, then! I'll be back with you shortly."
Harry grabbed a textbook on curses and began to read up on the explosion curse Bombarda. He studied the instruction and after forty minutes he felt that he understood the theory well enough to progress to the practical instructions. But first, he deserved a reward!
He got up from the couch and stepped towards his slave, freeing his stiffening cock from his trousers while he approached her.
"Alright." he whispered to the brunette as he grabbed her hips with his left hand and aligned his cock with her puckered hole with his right. "Get ready for it!"
"Please, not again!" Hermione implored him, trembling slightly. "Not in there, please! No no no - AAHHHH!"
Harry groaned in satisfaction when he entered her tight back passage. Hermione moaned in pain when he picked up speed and fucked her arse with forceful thrusts.
After a few minutes, his slave's clenching arse finally finished him off and Harry was hit with an incredible orgasm, spurting his cum deep inside her depths.
He pulled out and pushed his slave to her knees.
He held his slick member before her face and was happy to see that she didn't even need his instructions this time. Reluctantly, she opened her mouth and wrapped her lips around his softening cock, sucking him until he was clean and limp.
"Well done, Pet!" Harry praised her and pulled her up again.
"Get back to your task!" he told her and bent her forward over the desk again. He gave her butt a last good smack for good measure before he stepped away.
Sniffling, Hermione tried to continue reading the book and making notes, doing her best to ignore the putrid taste of the mixture of her arse and Harry's semen that filled her mouth. She also tried to ignore the throbbing pain of her bruised arse and her sore back passage and the gross feeling of the constant trickle of semen that oozed out of her abused anus.
Paying no mind to his slave's suffering, Harry resumed his study of the Bombarda curse. It was thirty minutes later that Harry had gotten the wand movements right and could start practicing the spell for real. After he got a reward for his success, of course!
He walked over to his slave again, who began whimpering as soon as she noticed him approaching her.
"Master, please, not in my arse again!" Hermione begged frantically.
Harry only smirked at her and opened his trousers while he enjoyed the sight of the girl's naked bottom sticking out towards him. He could see the trails of fresh and dried cum from their previous arse fuckings, running down from her puckered hole along her pussy and down her legs. Some of it had dribbled to the floor, and some cum was still oozing out of her tightest hole. She should be grateful for that, he thought with a grin. It was the only lubrication she would get.
He was getting rock-hard again and felt ready to go for another round.
Paying no mind to his slave's desperate pleas, Harry grabbed her hips and buried himself to his roots between his slave's bottom cheeks. He drove himself into her again and again, causing Hermione to sob loudly.
"Pleeeeease! It hurts! It hurts so bad!" she wailed. "I can't take it anymore!"
It only edged him further on, and soon he filled his slave's hot channel with another huge load of his seed.
He then forced Hermione to clean his cock again, enjoying the sight of her pretty face scrunched up in pain and disgust.
When she was done cleaning him, Harry once more retreated back to the other side of the room and began practising his spell.
He left Hermione behind him, crying silently. She leaned onto the table and tried to return her attention to the book she had been reading, but her mind was a mess. Her abused puckered hole was getting more sore with every rough shag. The pain was starting to become unbearable for her.
Still, she did her best to continue her task, all the while her Master's semen was dripping from her sore back passage, trailing along her labia and down her thighs, and trickling to the floor.
Her respite didn't last long. Only thirty minutes later, Harry succeeded with his spell practice and walked over to her again.
Hermione started to panic when she noted him approaching her.
"Please, Master, not my arse again!" she pleaded desperately and fell to her knees. "Please, Master, won't you let me suck you off? I'll make it good; I swear! I'll take your cock all the way down my throat, and use my tongue, and I'll swallow everything! Won't you fuck my mouth?"
Harry tilted his head at the naked, trembling girl, amused by her offering.
"Alright, fine." he decided. "Let's do it this way, then: If you manage to suck me off in less than five minutes, I'll spare your arse this time."
"Thank you, Master." Hermione said, much relieved. "I will do that. I promise!"
She opened his pants and pulled Harry's cock from its confines in his boxers. After a moment of hesitation, she opened her mouth and wrapped her lips around his shaft. She didn't waste any time taking it slow but immediately pushed her head forward until he bottomed out in her gagging throat.
Harry groaned in pleasure when the brunette rapidly moved her head back and forth, deep-throating him in earnest. Her gagging throat pulsated around the tip of his cock and she was stimulating the base of his shaft with her tongue. She put her left hand on his bottom to support her movements and softly massaged his balls with her right.
The sensations were almost overwhelming, and Harry felt that he wouldn't last longer than a few minutes. He couldn't help himself and just had to fuck her throat even harder. He wrapped both hands into her wavy brown hair and pushed her face deep into his crotch while slamming his hips forward with rhythmic thrusts.
It didn't take long until her convulsing throat brought him to his climax. Harry shuddered and with a content groan, he began spurting his seed straight down into his slave's stomach. Gradually, he withdrew his still spurting cock from her throat, filling her mouth with several spurts of cum before pulling out and finishing off with some last weak pulses that landed on Hermione's scrunched up face - across her nose, on her left cheek, and above her right brow.
"That was amazing, slut!" Harry said with satisfaction and smirked at the sight of his slave's messed up face. Tears were streaming down her cheeks, intermixing with his cum, and her chin glistened with her saliva.
"Well, swallow it, and get up and continue your task!" Harry said. "I'll be back soon."
Hermione only whimpered as she unsteadily got to her feet, swallowed his cum, and leaned over the table again. Giving her a last hard slap on her bottom, which caused her to cry out loud, Harry returned to the couch to resume his studies. He started to look up some defensive spells now, which took him a while longer.
"Alright, I think it's time for another break!" Harry called out fifty minutes later.
Hermione immediately fell to her knees again as he approached her. She looked adorable like that, Harry thought. Kneeling, fully naked, perky breasts, wide pleading, panicky eyes, and the mixture of tears, saliva and cum on her face had just begun to dry, leaving behind a sticky mess.
"I'll suck you again, Master." she promised. "Please, may I suck you again?"
"Alright." Harry agreed with a grin. "But this time, you only have three minutes."
She nodded anxiously and freed his sticky cock, plunging it straight into her mouth without further ado. She expertly sucked on his throbbing member, but Harry didn't give in to the sensations this time and tried to hold himself back.
As the second minute passed, Hermione became more desperate and increased the pace of her movements, driving her throat back and forth rapidly, taking him as deep as she could, paying no mind to the increasing pain of her gagging throat or her difficulties to get enough air.
But in the end, her efforts were of no use.
Harry grinned when his watch indicated that three minutes had passed.
"Time's up!" he announced to the panicking girl. "So, get up and turn around!"
"No, please, just a bit longer!" Hermione begged between coughs when he pulled his cock from her mouth.
"Nope. You had your chance." Harry grinned. "Now turn around so that I can fuck your arse!"
"Pleeease!" Hermione wailed, but she had no choice but to obey the order.
She stood up and Harry pushed her down on the desk.
"No, please! Noooo-AAAAHHHH!" Hermione screamed when Harry thrust his hard cock into his slave's twitching anus. He grunted and pushed forth, his hands gripping her hips firmly, until he bottomed out in her.
Hermione cries increased when he took up speed and ruthlessly plundered her tightest hole, his hips smacking against her arse forcefully.
It took only a few minutes until Harry yelled and filled her clenching channel with his seed.
Spent, he pushed her down on her knees once more.
"Clean me!" he told his slave, who continued to sob while she used her mouth and tongue to cleanse his cock.
When he pulled his slave up when she was done, Harry could see in Hermione's eyes that she was getting close to her breaking point. But she wasn't quite there yet. One or two more rounds should do it, he decided. That should fit neatly with how much time they had left for this session.
Harry then resumed his spell practises until he had recovered and felt ready to go at it again.
"How does your arse feel? Ready for another round?" he loudly asked his slave from where he sat.
Hermione dropped to her knees again, turning towards him in a pleading pose.
"Won't you fuck my mouth, Master?" she begged. "I promise this time I'll finish you off in time!"
"Hmmmm." Harry hummed as he stepped towards her, pretending to think about it. "Nah. Get up!"
"Or my pussy?" she pleaded as she stood up. "Wouldn't you want to fuck my pussy? It's just as tight as my arse, but much wetter. It will feel much better than my arse! I promise!"
"Slave, bend over!" Harry ordered, and Hermione did as commanded, her sobs increasing.
She reached back with her arms, taking her pussy lips in her hands and spreading them to expose her pink inner folds.
"Look, I'm already wet for you, Master!" she cried desperately. "Please, won't you fuck my pussy? Pleeease!"
Harry only smirked as he stood right behind her and stroked his dick until he was fully erect again.
"Get ready for it!" she whispered to the distressed girl and aligned his shaft.
"Please, Master, pleeease!" Hermione begged.
Harry knew that he surprised her when he thrust his hips forward and plunged his dick into her pussy.
"OH! Thank you!" Hermione exclaimed. "Ooohhh! Thank you, Master! "
Harry didn't respond, too distracted by the exquisite sensation of her pussy quivering around his cock. His slave's vagina might be less tight than her arse, but by no means was it an any less enjoyable fuck hole for his cock. He groaned at the feeling of her inner walls clenching his cock and noted that she was getting increasingly wet.
He leaned closer against the girl, wrapping his arms around her. He fondled and squeezed her tits for a bit and then moved his right hand down to her pussy to rub his fingers on her clit.
His slave moaned wantonly, and her pussy clenched him even tighter, and Harry knew that she was close to climaxing.
"Please may I cum?" the brunette begged.
"Not yet." he said and increased the pace of his thrusts. A smirk took form on his lips when he got an idea for a special surprise for his slave.
He withdrew his hand from her boobs and palmed her arse, while with his other hand he continued to stimulate her clit.
"Ungghh, please, I need to cum!" Hermione whimpered.
"Alright, cum, you dirty whore!" Harry said and did several things at once.
He pinched her clit hard, causing Hermione to scream when her orgasm hit her.
"OH! YES YES-"
At the same time, he spread her bottom cheeks apart with his other hand, and pulled out of her pussy and buried his cock in her back passage in one swift thrust.
"YE-AAAAHH!" Hermione shrieked in pain when her pleasure at once gave way to piercing pain.
The hard clenching of her tight hole around his cock tipped Harry over the edge and he groaned as he exploded into bliss, spraying his seed into her recesses, while Hermione cried desperately.
"OOOWWW! IT HURTS! PLEEAASE! Please, Master, no more!" she wailed.
"Slave!" Harry shouted. "Enough of this!"
Exhausted, he pulled his member out of her arse, and a stream of cum immediately seeped from her abused anus.
"You've made a mess." Harry said as he pushed his slave to her knees. "There's cum all over your body and on the floor. After you've cleaned my cock, I think you should clean that up, too."
Hermione grimaced, tears streaming down her cheeks.
"Plea-" he pleading was muffled when he forced her face into his crotch.
"Clean me!" he told her, and Hermione had no choice but to obey.
Sniffling, she completed the revolting task once more, filling her mouth with the awful taste that was becoming familiar to her by now but not any less nauseating.
"Alright." Harry said when she had licked him for a while. "That's done. I think you should take care of the rest now. With your mouth, too, of course."
"Please, don't make me do this!" Hermione groaned, shaking her head weakly and looking at Harry with pleading eyes.
"You made this mess, you clean it up. It's simple as that." Harry said dispassionately. "You have ten minutes. If I still see a single drop of cum or pussy juice on you or on the floor when the time is up, you will regret it."
Hermione slumped onto the floor, her sobbing increasing as she realised that there would be no escaping this revolting and degrading task.
Resignedly, she started by licking her fingers and swiping up the few dollops of dried up cum on her face.
Her face showed her revulsion when she then began swiping up the sperm that had seeped from her arse and trailed down her thighs. She began with her legs and slowly moved upwards, cleaning up the trails of cum by swiping everything up with her wet fingers and licking her fingers clean. She almost threw up when she reached her puckered hole itself and wiped up and ate the semen that had oozed out of her filthy hole most recently.
Harry very much enjoyed the show, watching her degrade herself with a lecherous grin. Despite his exhaustion, he felt himself growing hard again.
When she was done cleaning her body, Hermione lowered her face to the ground and began to lick up the dollops of cold semen and pussy juices on the floor.
His slave's groans and gagging noises in combination with her reddened arse wiggling in the air proved too much for Harry. His cock was rock-hard again, and he just had to take his slave one last time.
He knelt down behind her, pulled her hips to him and aligned his cock with her red, sore sphincter.
Hermione whimpered as she realised what was about to happen, and she cried out in pain when he pushed forward and started to violently fuck her arse once more.
"AAAHHH! NoooOOOO!" she wailed, but Harry only increased his pace.
"Continue to clean the floor!" he shouted, and despite her continuous crying, Hermione did as commanded and lowered her face to the floor again.
The wriggling of her arse as she moved around, trying to find and lick up every last drop of cum on the floor, only added to his enjoyment.
He continued to fuck her tight abused hole for several minutes, and when he felt his climax approaching, Harry pulled out of his slave's arse and forcefully pulled the girl around so that she faced him.
"Plea-" she began, kneeling on all fours before him, but he silenced her by unceremoniously ramming his throbbing cock down her throat.
The vibrations of her throat as she screamed in protest sent him over the edge, and he convulsed, spurting his seed right down his slave's throat and into her stomach, where it belonged.
With a content groan, he then pulled his dick out of her mouth and stood up again.
Once she was free of his grip, Hermione immediately collapsed sideways, crying uncontrollably. She lay on the floor, curled up, hugging her knees with her right arm and covering her sore arse with her left hand.
"No-no more-no more! Please-please! I'm sorry! Your slut is sorry! Please, Master! Your slave has learnt her lesson! I belong to you. I'm loyal to you-only you. I understand. I won't disappoint you again, I promise! Please, no more!" she whimpered in between desperate sobs.
Harry had enjoyed breaking her spirit, but now he couldn't help but feel some sympathy with the crying, broken girl, and he decided that her punishment had gone on long enough. It was time to be a bit more gentle again and build her back up. He hoped for her sake that she had truly learnt her lesson this time.