It took Harry and Hermione several hours until they had drafted a magical contract that they both deemed concise, complete and most importantly entirely foolproof and unbreakable. Hermione repeatedly consulted the books on magical contracts that she had brought from the library and occasionally adjusted certain wordings, while Harry mostly made sure that the contract would be restrictive to the girl who signed it but wouldn't restrict him in any way in ordering around his newest slave.

In the end, the contract would have the same effect as him calling the life debts of Hermione and Ginny. It would bind the signatory to his will in body and magic and force her to obey any and all commands made by him.

He was especially happy when the Room of Requirement even provided them with a Blood Quill after they had come to the conclusion that it would be best if the contract was signed with blood. Hermione stated that with the contract signed like this, it would even supersede any magical attempts to circumvent it by third parties, for example if someone tried to get the slave to divulge his secrets with veritaserum or legilimency.

Once they had gathered all the information and had finalised their draft, Harry left it to Hermione to write down the contract on a new sheet of parchment. While she wrote, he idly observed the gorgeous girl, who was still dressed in her tight white blouse and her skirt, and he began to make plans for her well-deserved reward.

He also briefly turned around towards the entrance of the room, where his other slave was still kneeling on the floor next to the door. Ginny was still pumping her large butt plug into and out of her arse at a rapid pace, just like he had ordered her to do it several hours ago. Harry mused that she had probably loosened up quite a bit, but even now she still grimaced in pain every time the large plug passed her abused anal ring.

As she had been ordered to stay silent while she raped herself, she couldn't even cry out in pain nor beg for mercy, though that would have been difficult anyway with her mouth still filled with his cum. She could only give off small whimpers of pain which together with the wet smacks of her movements had become background noises in the Room of Requirement.

When the naked girl caught his eyes, a desperate, pleading look appeared on her tear-streaked face. But Harry only shot the redhead a smirk and turned back to Hermione when he noticed that the scratching of her quill had stopped.

"Well, are you done?" he asked her.

"Yes, all done." the girl said proudly as she laid aside her quill. "It's ready to be signed now."

"Well done, Pet!" Harry praised her. "Very well done! You've been brilliant!"

"Thank you, Master!" the brunette preened at the praise.

"Are you ready for your reward?" Harry asked and at his mental command, a large four-poster bed appeared in the middle of the room.

"Always, Master!" the girl replied with eagerness.

She began to unbutton her blouse, but Harry stopped her after she had opened the first three buttons, revealing the impressive cleavage of her enlarged tits. Her hardening nipples were showing through the thin white fabric even when they were still covered.

"That's not necessary." he told her, having decided to mix things up a bit. "Stay like this! I like this cute school girl look. Lie down on the bed like this!"

While Hermione got comfortable on the bed, he quickly gathered several cuffs, ropes, and two potion vials.

Hermione watched him, her eagerness and anticipation evident in her face, and Harry could tell by her expression and her breathing that she was getting wetter by the second. He smiled as he approached her.

"We will do something special today." he told her and held up one of the vials of potion. "The flexibility potion! I couldn't wait to see you try this out when I bought it yesterday."

He measured out one dose of the potion in the cap of the vial and handed it to his Pet, who accepted it eagerly.

"Down with it!" he told her, and she immediately downed the potion in one gulp.

Nothing happened at first, but the instructions on the vial said that it took a few minutes for the potion to take effect. One dose would then last for five to eight hours.

Hermione lay back on the bed, curious how the potion would affect her, while Harry used the time to walk over to his other slave.

Ginny was still obeying the orders he had given her earlier. Harry watched with a cold smirk as she relentlessly abused her tight arsehole with the large butt plug, enjoying the pain and humiliation in her eyes. He knew that if it wasn't for the enchantments on the toy that prevented it to cause any real damage, his slave's arse would probably be bleeding by now.

"Having fun, Fucktoy?" he asked tauntingly.

Ginny didn't meet his eyes and only responded with a whimper and a slight shake of her head. She was utterly beside herself.

"No?" Harry asked. "You want to stop?"

She finally looked up at him and nodded desperately.

But Harry snorted and shook his head with derision, taking great pleasure from crushing her hope that her torment would stop any time soon.

"Bad girl!" he shouted and forcefully slapped her tits. "You should be thanking me that I allow you to play with your slutty holes, not ask for a break!"

He straightened back up and smirked at her. "But you will learn. Continue what you are doing, but double the pace!"

Ignoring her horrified look and her despondent sobs, he turned around and returned to the girl who knew how to be a proper little slut.

Hermione was awaiting him eagerly, excited for whatever it was he had planned for her. She had a hard time not touching herself, so she was almost glad when she realised that Harry would soon relieved her of that temptation when he attached leather cuffs to her wrists and ankles.

He tied one end of the four ropes to each cuff before he decided it was finally time to test the effect of the flexibility potion. He took her ankles and slowly pushed open her legs. As he did so, the girl's skirt slid upward, exposing her moist pussy glistening with her arousal as well as the butt plug protruding from her tight arse. It was an enchanting sight that he would never get tired of.

Hermione was always ready to spread her legs for her Master and she was happy to go along with his movements, but even when she couldn't open her legs any further on her own, Harry simply kept on pushing, bending her legs backward and to the sides until her feet where almost at level with her head.

"Oh wow!" she muttered, impressed by the potion's effect and aroused by having her holes exposed more lewdly than ever before.

"Does it hurt?" Harry asked, but Hermione shook her head.

"No, Master. Not at all."

"That's good." Harry said with a grin and began tying the ropes of the ankle cuffs to the bedposts behind her.

Next, he took the ropes of her wrist cuffs and with her arms stretched outward, crossing her legs, he tied the ropes to the bedposts at the foot end of the bed.

His Pet was completely immobilised, her pussy and stuffed arse exposed and available for him. She was slightly gyrating her hips in anticipation of his cock, and Harry briefly wondered if he should punish her for being a tease but decided that he didn't mind in this instance.

Quickly, he stripped down, having been stiff for some time already. Before he climbed onto the bed, he took a large dose of the Enhancement Elixir to ensure that he could to make the most out of having her tied up like this. He wanted to fuck her at least a dozen times this afternoon.

He then positioned himself in front of her and Hermione moaned wantonly when he brushed his hand over her heated pussy and briefly pinched her clit between his fingers.

"Ready?" he asked her with a grin, pressing the tip of his cock against her wet entrance.

"Yes, Master!" Hermione moaned. "My tight pussy is always wet for your cock, Master! Please, Master, please use me!"

"I will." Harry groaned as he slowly pushed forward. "Because that's what you were meant for. A set of wet holes for my cock, nothing more!"

"Yes! Yes, Master!" his Pet cried out as she felt his cock sliding into her, stretching her and filling her completely.

"Fuck!" Harry panted. "So tight! So tight for me! You're such a perfect little slut!"

"Ohh, yes! Yes, Master, I try to be!" Hermione moaned as he sped up. "I try to be, Master! Ooohh! Thank you! Thank you, Master!"

Harry continued thrusting into her for several blissful minutes, enjoying the impossible tightness of her pussy, and her moans of pleasure became louder of louder.

"Do you want to cum, Pet?" he asked her he when he felt himself getting closer. At the same time, he increased his pace even further, causing her whole body to jerk from his forceful thrusts.

"Ah! If - if it - only if - if it pleases - OOHHH!" Hermione sputtered, hardly able to form a coherent response.

"No false modesty, Pet!" he teased her, breathing heavily. "Be honest! Do you want to cum?"

"I - I am honest!" she moaned. "Only if you want me to, Master. But - OHH! - if you do, then PLEASE! YES! I'm sorry, Master, I - AAHH - I'm really sorry, but I really NEED it, PLEEAASE! OOHH!"

"Together with me, Pet! You can cum together with me!"

"Yes, Master! YES! Please, Master, please cum inside me! Please fill my pussy with your cum!"

"Fuck! Yes!" Harry groaned as he felt his balls tighten. "Here it comes, Pet! Go ahead! Cum for me!"

"AAHHHH! YES, MASTER, YEEEEES!" the girl screamed when her own orgasm overtook her just as he exploded inside her.

She was squirting around his cock, covering both of them with her juices all the while her pussy was clenching down on his cock and milking him of every last drop of cum.

"Wow!" Harry breathed heavily when he was spent. "That was great, Pet!"

"Thank you, Master. Thank you so much!" Hermione wheezed, slowly coming back from her orgasmic height, looking up at him with nothing short of utter devotion.

He enjoyed her warmth and her tightness for a few more minutes as he recovered from his incredible climax. Once his breathing was back to normal, he slid out of her and smirked at the sight of her slightly parted, bright pink pussy that was slowly oozing his cum. His cock was still rock hard, however.

"Well, do you want more?" he asked the girl below him.

Hermione took several deep breaths and shot him an uncertain look. "I'm yours, Master. I know I don't deserve it, but if it pleases you, Master, I'll always be ready for more. My body is yours to use."

"Good girl!" Harry praised her and palmed her open pussy, eliciting another moan from his Pet when he began circling her clit with his fingers. "I think it's time to see what the flexibility potion can really do."

He chuckled at his Pet's questioning look. "You didn't believe that tying you up like this, lovely as it is, was already the end of it, did you?"

He withdrew his fingers from her slit and leaned towards the girl, putting his hands behind her neck.

"Now, remember, this is supposed to be a reward." he told her. "You should be able to pull it off with the potion, but I don't know whether it will hurt. If it does, tell me. I'd really like to see this, but if it hurts, we'll save it for another time. And I'm sure Fucktoy won't mind providing us with a demonstration in the meantime."

"What-" Hermione asked with confusion, but she halted when he pulled up her head and torso and then bent her forward. Her spine bent as easily as her joints, and he easily brought her face down between her spread legs.

"Oh!" the brunette exclaimed in surprise just as he pushed further and finally pressed her face into her pussy, her mouth against her clit and her nose pressed deep into her own folds.

"Ohh! Hmmm!" she mewled with pleasure at the unfamiliar sensations, and her own moans sent further tingles of pleasure through her body. Inhaling the scent of her cum-filled pussy only added to her arousal.

"I see you like this!" Harry chuckled, very much turned on by the sight. He readjusted the length of the ropes tying her wrists to the bedposts, shortening them to ensure that she stayed in position. "How is that? No pain?"

"No, Master." Hermione replied, raising her head slightly above her pussy to look up at him. "Can I-?"

"Yes, lick yourself!" Harry allowed her. "Eat your cum-filled pussy! Lap up all the cum and eat it!"

Hermione eagerly did as commanded and delved her tongue deep into her own wet slit, determined to lick and suck as much cum out of her pussy as she possibly could. She moaned loudly as she twirled her tongue inside herself, the pleasure almost overwhelming to her.

Harry couldn't watch her for more than a few minutes before he was unable to hold himself back any longer and had to join back in again. He aligned his shaft, and as the girl withdrew her tongue from her slit to make way for him, he unceremoniously rammed his whole length into her hot, wet pussy.

Hermione would have climaxed just from that first thrust if she had been able to, and soon, she was breathlessly moaning and whimpering into her own folds while he pounded into her. As she was still under orders to lick herself, she switched to pleasuring her clit with her mouth and tongue while her pussy was occupied.

She felt as if she was about to lose her mind to the combined pleasure of herself sucking on her own clit and her Master's thick cock rapidly sliding in and out of her sensitive pussy and hitting all the right spots, but she was determined to not beg for another orgasm before she had provided her Master with his own.

Harry could see the desperate need in his Pet's eyes as he slowly approached his own climax. He could tell how much she wanted to cum, and yet she tried to hold herself back and simply be a good little slut for him to use.

"You need to cum again, don't you, slut?" he asked teasingly.

"Oh! Oh! I - ah!" she looked up at him and hesitated, but he smiled at her.

"Don't worry, Pet. This is supposed to be a reward, after all. You can cum. You're allowed to cum as much as you want while I have you tied up like this."

"Oh! Thank you, Master!" Hermione moaned. "Please - OH! - please cum inside me, Master! I'm so close, Master! Don't make me cum without you!"

"You won't, Pet, I'm-" Harry grunted as he felt himself rapidly approaching another climax. "Ahh, fuck!"

"OH YES, MASTER!" Hermione screamed in pleasure as he started to pump his second load into her, her second orgasm even more intense than her first one, and she made an even bigger mess of herself, of him, and of the bed as she squirted her juices all over them, much of it covering her face and filling her mouth this time.

"Damn, Pet, you really are something else." Harry chuckled when he finally withdrew from her. "Such a kinky, insatiable little slut! Well, enjoy your reward!"

"Yes, Master. Thank you, Master." was his Pet's only reply before she resumed eating her own pussy and began lapping up the fresh load of cum from her depths.

As she was no longer restricted from orgasming without permission, there was nothing to stop her from soon climaxing again just from the sensations of her own tongue licking the sensitive inner walls of her pussy.

As Harry also soon joined back in again, Hermione was unsure how many orgasms she had during the next hour, but she was pretty sure that she had set a new personal record, with her eating herself out and her Master alternating between her holes, filling her pussy and her arse with load after load of cum or sometimes shooting his seed straight down her throat.

Even with the flexibility potion, she couldn't reach her arse with her mouth, but Harry only shrugged at that after the first anal shag and inserted the plug back in her arse to seal his cum inside her.

"Fucktoy can clean this up when we're done." he commented with a smirk.

He fucked her arse five more times that afternoon, with him, as usual, removing the cum-coated plug from her arse and inserting it in her mouth instead, but that was the full extent of her tasting those loads.

She only ate the cum he deposited in her pussy or that he shot straight down her throat, and that was enough for her to feel rather full by the time Harry finally called for a break.

"Alright, Pet." he said as he slid his cock out of her mouth once she had cleaned him after their latest shag. "It's time for dinner. And I really need a break, anyway. You look as if you could use one, too."

He grinned at her, taking in the breathtaking sight of the well-fucked girl who was tied up in front of him. She appeared almost delirious from her seemingly endless orgasms. Her sopping-wet pussy was still quivering from her latest climax, her face was glistening and her hair was matted with the wetness of her own juices and his cum, and the bedsheets around her were soaked with sweat and cum.

"Well, I'll go and have dinner." he informed her. "I guess you've eaten plenty already, so I'll just leave you here like this. You can continue eating out yourself or you can rest a bit until I come back. Whatever you'd like."

"Alright. Thank you, Master." the girl replied quietly, her exhaustion evident in her voice.

Harry quickly cast a few cleaning charms on himself before he gathered his clothes and donned his robes again.

"Oh, and I don't want you to feel lonely, so Fucktoy will stay here to keep you company." he said to his Pet as he turned to leave. "Isn't that right, Fucktoy?" he called.

Ginny, of course, was still kneeling near the entrance of the room, tormenting her abused arse with her large butt plug just like she had been forced to do it for hours.

Shooting the despondent girl a last smirk as she passed her, Harry left the Room of Requirement. He felt ravenous and exhausted after the long afternoon, but he still couldn't wait to continue his Pet's reward session after dinner.