Harry's Slytherin Adventure (Ch. 1 - Astoria's Bet) (Patreon)

Disclaimer: The characters in this story have been aged up. Hogwarts start at the age of 13, making Harry and all characters Harry encounter 18 or older.

Harry Potter was walking down the hallway of Hogwarts Castle, feeling more than satisfied with himself. His green eyes were sparkling with mischief, and his broad shoulders were held high. The beginning of the new school year had brought many challenges, but he had managed to overcome them all. This year, he was a sixth-year student, and he was determined to make the most of it.

As he was strolling along, he heard a voice calling out to him. "Potter!" He turned to see Astoria Greengrass, a tall, slim girl with long blonde hair and blue eyes. She had recently announced her engagement to Draco Malfoy, much to everyone's surprise. And while she usually seemed a bundle of happiness, today she looked angry and frustrated. "I need to talk to you," she said, as she led him into an abandoned classroom nearby.

Harry raised an eyebrow. "What's wrong?" he asked, as he took in her appearance. Her fair skin was flushed, and her blue eyes were shooting daggers at him. She wore a tight-fitting Slytherin robe, which accentuated her tall figure and showed off her perky breasts. Her blonde hair cascaded down her shoulders, and her usually plump, pink lips were pursed in a thin line. Harry had to begrudgingly admit that Malfoy had bagged himself a real beauty.

"You know very well what's wrong," Astoria replied, crossing her arms over her chest, making her breasts jiggle enticingly. "You and your friends keep humiliating Draco, and I want it to stop."

Harry shrugged nonchalantly. "He keeps picking fights he should know he can't win," he said. "It's hardly my fault if he falls flat on his face every time."

Astoria huffed. "You always fight dirty," she accused. "You surround yourself with your friends, and they gang up on him. You don't give him a chance to defend himself."

Harry chuckled at that. It couldn't be further from the truth. Just last week, Draco had tried to ambush him and his friends in the corridor, but Harry had been too quick for him. News of the encounter had spread throughout the school like wildfire, leaving Draco red-faced and embarrassed.

Astoria must have noticed the look in his eyes because she added. "Snape will be referring during the upcoming Quidditch match between Gryffindor and Slytherin. You won't be able to cheat then."

Harry felt a smirk tugging at his lips. Yeah, Snape would be there, but he wasn't worried about it. He was confident in his abilities, and he knew he could take on anyone. Malfoy didn't even register on his radar these days. "Care to take a bet on that?" he suggested.

Astoria looked taken aback for a moment, but then she nodded. "Fine," she agreed. "If Draco beats your pretty little ass, you are going to leave him alone for the rest of the school year."

Harry couldn't help but chuckle at that. Like that was ever going to happen. But, still, it was a nice gesture on her part. "And when I beat Draco?"

"Draco won't lose," Astoria insisted stubbornly.

Harry couldn't help but roll his eyes at that. The girl really had no idea who she was dealing with. "Alright, fine," he conceded. "But in the 'astonishingly unlikely' event that I beat Draco, you'll be my personal maid for a day, doing anything I ask of you."

Astoria scowled at that, but she didn't back down. She must have truly loved her fiancé to not be able to see how much of a lost cause he was. Or maybe she was just hoping that he'd somehow miraculously pull through. "Deal!" she declared, extending her hand towards him.

"Deal!" Harry said, as he shook her hand firmly, feeling their magic intertwining, sealing the magical contract. Astoria's eyes widened as she felt his power, and Harry couldn't help but grin at her reaction. There was no backing out of this now.

"You know you've just given me an even greater incentive to beat your fiancé, right?" Harry asked, as he released her hand.

Astoria looked flustered for a moment, but then she shook her head. "It doesn't matter," she said. "Draco will trounce you. You'll see."

Harry chuckled at that. "We'll see," he agreed. "But just in case, I'll be placing an order for a french maid outfit for you. Wear it when I come to collect on my bet."

Astoria looked outraged at that, but Harry just winked at her and walked away before she could respond.

...

The next week, Harry found himself in the same abandoned classroom where he had made the bet with Astoria. He was feeling more than satisfied with himself, grinning from ear to ear. Draco had fallen flat on his face during the match, just as he had predicted, and the little prat was now nursing his broken ego in the Hospital Wing.

As he stood there, soaking in the victory, he heard the door creak open behind him. He turned around to see Astoria entering the room, wearing the french maid outfit he had ordered for her. His smile grew wider as he took in her appearance.

The outfit was barely there, hugging her curves in all the right places. The top was a flimsy piece of fabric that barely contained her ample bosom, the lace trim teasingly revealing the edges of her areolas. The skirt was just as scandalous, barely covering her toned, bubble butt that was known to make boys drool as she walked past. Harry's eyes roved hungrily over her, taking in every inch of her exposed skin.

Astoria's cheeks were flushed, her blue eyes sparking with a mix of embarrassment and excitement. "You didn't have to make me wear this," she muttered, crossing her arms over her chest in a futile attempt to cover herself, which only ended up pushing her breasts together and making them jut out even more provocatively.

"Oh, but I did," Harry replied, his voice low and husky. "You lost the bet, Astoria. You're my maid for the day, and I get to decide what you wear."

Astoria scowled at him, but she didn't argue. "Fine," she huffed. "What do you want me to do?"

"Clean the room," Harry instructed simply, sitting down in one of the chairs nearby. "Without magic."

Astoria looked incredulous at that. "Why?" she demanded. "This is ridiculous! You don't even use this room!"

"I know," Harry replied. "But I still want it to be clean, and you're the one who's going to do it."

Astoria let out a huff of frustration but didn't argue further. She knew she had lost the bet fair and square, and she had to fulfil her end of the bargain.

With a flick of his wand, Harry conjured a bucket and some cleaning supplies, and Astoria got to work. She got down on her hands and knees, her breasts jiggling enticingly in the tiny maid top as she began to scrub the floor with a rag. Harry watched her with a smirk on his face, his eyes roving over her body hungrily. He could see the outline of her pussy lips, and the edges of her rosebud through the thin fabric of her g-string, and it was driving him wild with desire. The maid outfit had been a brilliant move on his part, giving him the perfect opportunity to enjoy the sight of her in all her naked glory, while she was supposedly 'working.'

He watched her ass she moved around the room, her perfect ass jiggling with every step she took, her pussy lips peeking out from under her skirt and g-string as she bent over to pick up a bucket of water or reached up to dust the top of a bookshelf. He could feel his cock growing harder in his trousers with each passing moment, the head poking out against the fabric, begging to be set free.

After what felt like an eternity, Astoria finally finished cleaning the room. She crawled over to where Harry was sitting, her eyes downcast. "I'm done," she said softly.

"Almost," Harry replied, his voice low and husky. In the time she had been cleaning in the slutty maid outfit, he had grown hard as a rock. And now, he wanted nothing more than to release the tension that had steadily built up inside of him. He unzipped his trousers and pulled out his thick, throbbing cock. "I think it's only fair that you clean this up as well," he said, gesturing towards his engorged member.

Astoria's eyes widened in shock as she took in the sight of it. She had never seen anything so big and intimidating before, and she felt a strange mix of fear and excitement coursing through her veins.

"And I want you to clean it with your mouth," Harry said, waiving his cock in front of her face.

Astoria looked horrified at that. "You can't be serious," she gasped, her eyes wide with shock. But Harry just smirked at her.

"I am," he insisted. "You're my personal maid, and I expect you to take care of my needs. And right now, my need is to cum. So, open that pretty little mouth of yours and start sucking."

Astoria hesitated for a moment, but then she reluctantly nodded. It wasn't her fault that she was on her knees, about to suck off her fiancé's worst enemy, she reasoned. If Draco hadn't lost the match, she would have never been put in this situation.

She leaned forward and slowly wrapped her lips around Harry's thick cock, tentatively taking the first inch of him in her mouth. Her pussy flooded with warmth, as she felt how big he was compared to her husband-to-be, and she couldn't help but moan. Harry growled lowly at the sound, reaching out to tangle his hand in her blonde hair, pulling her closer to him.

Astoria started sucking tentatively, her eyes closed, trying not to focus too much on what she was doing. Harry wasn't her type; she was engaged to a pureblood, after all. But she couldn't deny the way her body responded to him. She could feel the warm wetness between her legs growing stronger, spreading to her thighs.

Harry groaned as he felt her tongue swirling around his head, flicking at his sensitive underside. She sucked harder, moaning as she felt him growing bigger in her mouth. Harry thought she sounded incredibly hot when she was servicing him like this, so he tugged gently at her hair, encouraging her to swallow more of him.

"That's it, Astoria," Harry praised, as he felt her throat closing around his tip. "Take it deeper, baby."

Astoria obeyed, swallowing another inch of him, until she choked, and Harry pulled back, letting her breathe for a moment. She looked up at him, her lips swollen, her eyes glassy. Harry couldn't help but feel a thrill of satisfaction run down his spine as he looked at her. There was something undeniably erotic about seeing Malfoy's girl on her knees, desperate to please him.

He pushed himself back into her mouth, and Astoria resumed sucking, making lewd noises as she did. Harry could tell she was getting into it, moaning louder and louder, as she tried to take him deeper and deeper.

But no matter how hard she tried, she couldn't take him all the way. Harry was just too big and thick for her, and she was starting to feel frustrated and embarrassed.

Harry could see the frustration in her eyes, and he couldn't help but chuckle at her. "You can't take it all, can you?" he taunted. "You're not as good at sucking cock as you thought you were."

Astoria glared at him, feeling humiliated. How dare he mock her? She couldn't take him all the way, fine. But she was determined to prove him wrong, one way or another. She didn't know how, but she would make him regret his attitude.

With renewed determination, she attacked his cock again, sucking and licking it like a madwoman. She took him deep into her throat, almost choking on him, but refusing to give up.

One of her hands moved down to cup his balls, massaging them gently, while the other one moved up to caress his shaft. She could feel every ridge and vein of his cock under her fingers, and she loved the feeling of him pulsing against her palm.

"That's it, Astoria," Harry encouraged, his voice hoarse with pleasure. "You're finally getting the hang of it. Good girl."

Astoria moaned at the praise, her pussy fluttering in response. She knew she shouldn't enjoy being called 'good girl' by him, but she couldn't help herself. It made her feel wanted, desired, and she liked it.

To reward her efforts, Harry reached down and lowered her tiny top, freeing her breasts from their confinement. They spilled out, full and heavy, the nipples already pebbled with desire. He pinched one of her nipples lightly, rolling it between his thumb and forefinger, before moving on to the next one.

Astoria let out a loud moan around his cock, her eyes fluttering shut. The vibration traveled through his length, sending shivers down Harry's spine. Goddamn, she had an amazing mouth!

"Don't stop, baby," Harry urged, as he felt his orgasm building inside of him. "I'm going to cum soon."

Astoria redoubled her efforts, sucking and licking him with renewed vigour. She could feel him pulsing against her tongue, and she knew he was close. She wanted to taste him, to feel him spurt inside of her mouth.

And then, with a final push, Harry came, filling her mouth with his hot, sticky load. Rope after rope of his delicious release shot down her throat, and Astoria drank it all down gratefully, like the good little girl she was.

When Harry was spent, he pulled back, and Astoria released his now softening cock from her mouth with a final pop. Her face was flushed, her lips swollen, and her eyes sparkling with excitement.

"Fuck, you're such a slut," Harry complimented, tucking his cock back into his trousers, as he absolved Astoria of the rest of her duties for the day. "Does your fiancé not satisfy you?"

Astoria scowled at that, but she didn't argue. The mention of Draco, however, brought her back to reality, and she realised what she had just done. She had sucked off Harry Potter, the guy who had been tormenting her fiancé for years. And worse, she had enjoyed it.

But the more pressing thought was that she had lost the bet, which implied that Harry would continue to humiliate her husband-to-be. And she couldn't let that happen. It would gravely affect her own reputation after all.

"Let's make another bet," Astoria suggested, looking up at Harry with a defiant expression, her impressive stack still out on display to Harry's pleasure. "Draco will get a better grade than you in your upcoming Potions project. If I win, you leave him alone for the rest of the school year."

Harry raised an eyebrow at that. Astoria would be right to be confident in her bet; after all, Malfoy had always beaten him in Potions, ever since their first year. But Snape wasn't teaching anymore, and ever since he had acquired the Half-Blood Prince's notes, Harry had aced every single potion essay and test. So, he felt pretty confident about his chances.

"Alright, deal," Harry agreed, extending his hand towards her. "But if I win, you'll be my personal maid for a week, how about that?"

Astoria shivered at the thought. She couldn't help the fleeting thought that this was actually a win-win situation for her. If Draco won, Harry would leave him alone, and if Harry won, she would get to spend a week with his impressive cock. She quickly pushed the thought away, feeling guilty for even thinking about it.

"But no manual labour," Astoria clarified, as they shook hands on their new bet. "Just... sexual favours," she added before she could stop herself.

Harry chuckled at that. "Sure thing, sweetheart," he said, winking at her. He felt his magic intertwining with hers once again, sealing the magical contract before she could change her mind.

"I'm looking forward to it," Harry said, as he left the classroom, leaving Astoria behind, still dressed in that slutty french maid outfit.

The 'Harry / Astoria / Daphne / Tracey / ...' pairing was voted for by my generous supporters in the 'Story Shaper' tier. Thank you so much for your kind support!