Disclaimer: This story does not reflect the attitudes or characters in the Harry Potter series, nor does it have any affiliation with its author.

Story Codes: mf, nc-cons, inc, magic

Harry and Ron couldn’t stop smiling, even after the unfortunate and grisly attack the previous night by a group of Death Eaters. The Quidditch match had gone so well, with Ireland beating Bulgaria, and Krum catching the snitch. The unwarranted attack by a group of death eaters and the subsequent Dark Mark blemished the experience to a degree, but only minimally for Ron, who was still dreaming about Narcissa Malfoy’s sweet pussy. The entire Weasley family, along with Harry and Hermione, had returned however, in the early hours of the morning. They were exhausted and ready for bed as they made their way to their respective rooms and went to sleep. Ron let Harry take his bed while he slept on the floor, as Harry was the guest.

Harry had a hard time sleeping though; all he could think about was the Spellbook of Desires, and who his next victim would be. He had thought about using it on Ginny again, seeing how enjoyable his first time was with her, but he couldn’t stop thinking about Hermione’s gorgeous body and tight ass.

Ron had fallen asleep immediately, along with Hermione and the rest of the Weasley family. He was fast asleep, dreaming about what was, and what was to be.

Harry finally fell asleep three hours after Ron, holding his new leather-bound Spellbook of Desires in his arms, as he drifted off to sleep.

Ron would wake first, hours later, as the sun began to rise. Yawning loudly and stretching as he got out of his bed. He looked over at Harry, who was holding his prized possession and still sleeping soundly. Ron knew it was Harry’s turn to use the book, and he knew he would be using it Hermione, so he had to find a way to prevent him from using it until they made it back to school. At school, there would be so much pussy walking around; Hermione would be a second thought to him. Ron was willing to do anything to prevent him from using it on Hermione first. He had to steal and hide it until they made it back to school, only then would he return it back to Harry. Ron, stealthily, snuck up to Harry and quickly replaced the Spellbook of Desires with one of his own thick school books. Ron successfully made the switch without Harry even twitching. Ron left the room in quick order, searching for a suitable hiding place. He made it downstairs and out into the yard where he snuck into the broom shed. He looked around in the dusty old shed, looking for a suitable spot to hide the book. The broom shed was littered with old boots, cauldrons and broom sticks. Ron found a small nook behind a rusting cauldron and hid the book behind it. Ron left the broom shed with a smile on his face, having guaranteed Harry wouldn’t have his shot at Hermione before he did. He would sneak out after breakfast and look up a new spell to use on Hermione when Harry wasn’t around. It would be difficult to find the right opportunity with the house so full, but he’d wait as long as it took to get his chance at Hermione. Ron snuck back upstairs and into his room, where he fell back to sleep, believing his mission had pulled off his mission undetected.

Unfortunately for Ron, he hadn’t gone unseen; his younger sister Ginny had heard him walking down the stairs in the wee hours of the morning. Deciding that he was obviously up to something; she had followed him outside and watched from afar as he went into the broom shed with a leather-bound book, re-emerging minutes later without it. Ginny knew that the book must have been important for Ron to hide it from everybody, including his best friend Harry, as well. As Ron snuck back into the house and up the stairs, Ginny crept out to the broom shed, feeling the cool brisk morning air strike her face as she made her way. She opened the shed and entered, looking everywhere for the book. She knew Ron would’ve hid it somewhere unseen, so she got onto her knees, eventually finding the book behind a rusted cauldron. Ginny slowly opened the book, discovering the title, ‘Spellbook of Desires’. She flipped through the pages, thrilled at what she was seeing. Potions and spells of all kinds were in the book; describing the most lurid but fantastic sexual spells and potions which would seduce anyone.

‘Oh my god!’ said Ginny out loud as she looked closer at the book, seeing that some of spells resulted in memory loss. Ginny wondered if anyone had used the book on her, but thought better of it quickly, knowing that Harry would not try it on her and because Ron was her brother, there was no chance she’d been violated. Not to mention the fact that Hermione was a much bigger tease and if anyone was to be a target of one of the spells or potions from the book, it would inevitably be her. If only Harry knew how much Ginny loved him, then maybe he’d be using the book on her. Ginny knew the perfect way to get back at Harry; using one of the spells or potions from the book on him, letting him have a taste of his own medicine. Ginny had never had sex before (to her knowledge), but she knew that if it was with Harry, it would be worth it. She picked out a simple spell and read the description.

It read:
A fabulous and simple potion, which gives the drinker the ability to infect their intended target with a potent and viral infection, intended to make the intended target a sexually deviant, aggressive and experienced sexual actor. The potion will only be active within the drinkers system for ten minutes and the subsequent infection on the intended target will only last thirty minutes, leaving the target with no memory of the encounter. Warning! Whomever you touch will be infected, and they will seek out whoever is nearest!

Good, thought Ginny, thirty minutes should be plenty to teach that pervert a lesson and hopefully have some fun myself. Ginny read and re-read the potion mix. It seemed easy enough; mixing warm milk with honey, sugar and casting a simple wordless spell. If anything, the potion would taste good, even if the potion failed to work.

Meanwhile… Ron was back upstairs snoring so loud that Harry had woken. Not even checking to see if the book in his arms was in fact his Spellbook of Desires, Harry got up and went downstairs to sleep on the living room couch with the books still in his arms. Harry made his way down the stairs and walked directly into the living room, not even looking to see who was making a racket in the kitchen. Harry fell asleep as soon as his head hit the pillow, unaware of Ginny Weasley’s intention to infect him with a sexual virus.

Ginny was hard at work, warming up the milk, stirring in honey and sugar, and finally casting the correct spell, making the golden liquid flash three times brightly before returning to its original color.

‘Huh… this should be interesting’ Ginny said to herself, as she lifted the bowl of potion, draining the entire contents in one swig. ‘Mmmmm… that was good!’

Ginny made her way out of the kitchen, not even noticing that her intended target was already downstairs, only feet away from her as she passed Harry and made her way up the stairs towards Ron and Harry’s room. Ginny crept into the room, not making a sound, noticing; who she believed was Harry, sleeping on the floor. She didn’t even pay attention to the empty bed, knowing for sure that Harry would be sleeping on the floor and her bastard of a brother was obviously enjoying his own bed. Ginny thought Ron must be downstairs already, because he had talked about waking early and trying out Harry’s firebolt.

Ron was still fast asleep, with the covers pulled over his head, trying to block the sunlight that had made its way through his window. Ron had no idea that his little sister was getting undressed only feet away.

Ginny decided it was best to maximize her time and get undressed quietly, before she infected the unknowing Harry. She locked the door after peeling off her underwear, making certain Ron wouldn’t be able to enter until her half an hour was up. Ginny got onto her knees and crawled over to her sleeping victim. She lifted up the bottom of the sheets, revealing a pair of feet, which she touched immediately. The simple touch infected Ron instantly, and as Ginny continued to pull the sheets off the sleeping figure, she was horrified to discover that she hadn’t infected Harry, but her annoying brother Ron.

‘Oh Nooooo!’ screamed Ginny, as Ron awoke with a stir and a crazed look in his eyes. Ginny scrambled to her feet, running as fast as she could to the door. She turned the door knob, but quickly remembered that she had locked the door. Ginny made to turn the lock, but before she could, she felt her brother’s cold fingers grasp her naked waist and pull her backwards.

‘Let go… no please… snap out of it Ron… I’m your sist–’ Ginny tried to say before Ron turned her around and she got her first look at Ron’s long thick cock. She stared down at his six inches, and was shocked to feel a small twinge in her pussy. She quickly shook the thought from her mind, trying with all her might to break free of Ron’s grasp and get to the door.

Ron, completely infected by the sexual virus by this point, moved his hands up to his sister’s small but pert breasts as she continued to struggle against him. He could feel his cock come in contact with her warm and soft ass. He took hold over her soft supple breasts and massaged them as he started kissing Ginny’s neck.

‘Mmmmm….” Ginny purred, feeling Ron’s tongue trace up and down her neck and his fingers kneading her soft tits. She felt his fingers move to her nipples, making her moan again as her brother twisted her hardening nipples. Ginny was losing control, she knew it was very wrong, but it felt so right, as she succumbed to the incredible sensation of her brother’s tongue penetrating her delicate ear.

‘I’ve wanted to do this for so long!’ moaned Ron as he began moving one of his hands towards Ginny’s hairless pussy. ‘You’re every bit as sexy as Hermione’ he whispered into her ear as his cold fingers found their way to her pussy lips.

After saying this, Ginny was butter in Ron’s hands, giving in completely to Ron’s fondling fingers.

Ron was massaging her pussy, her tits and was kissing her neck, all at the same time, to great effect on Ginny.

Ginny reached down with one of her hands and took hold of Ron’s hard shaft, stroking it with her petit fingers as Ron moaned from her touch.

‘Stroke it… stroke it hard!’ he whispered into her ear, as he picked up his own fondling speed.

After a good ten minutes of rubbing, grunting and moaning, Ron decided to take it a step further and impale his sister on his six inch cock. He let go of her breast and pussy and took hold of her waist after bending her over.

Ginny let go of Ron’s cock at this point and supported herself on the door as she was forcefully bent over and prepared to be fucked. She wasn’t sure what was going to happen next, but she figured Ron’s cock would be entering her pussy next.

‘Ungghhh’ grunted Ron and Ginny, as Ron’s dick began to penetrate Ginny’s incredibly tight pussy. It would have been much tighter if this had been Ginny’s first time, but because neither of them thought otherwise, Ginny was quite pleased that it wasn’t hurting too bad. Ron kept forcing as much of his cock into her as his hands moved up to her breasts again, grabbing hold of her nipples and twisting them

‘Ohhh god… that feels so good’ cried Ginny, as she felt a strange tingling in the depth of her pussy. She couldn’t explain it, as a strange warmth overtook her body and with a squeal of pleasure, Ginny came, squirting her juices all over Ron’s half-submerged cock. Her warm juices dripped down her thigh and onto floor.

Ron could feel Ginny’s warm juices engulf cock as her pussy began to spasm from her orgasm. The sensation nearly made him cum, but he kept on playing with her nipples and trying as hard as he could to fit the rest of his cock into Ginny’s tight pussy. The added lubrication was finally enough for Ron to slam the last two inches of his cock into his sister, and as Ginny’s orgasm finally ended, he felt his balls bottom out, mashing his hips into hers.

With her orgasm finally over, she prepared herself for an extremely hard fucking as she looked back into Ron’s eyes and saw pure lust engraved in his face. Ron’s stamina could only be described as supernatural; the infection gave him the ability to last far longer than he could ever dream of, and after ten more minutes of hard slamming, Ginny heard Ron begin to pant.

‘I’m fixing to cum Ginny!’ grunted Ron as he continued to thrust into her clutching pussy.

‘Wait… I’m so close’ groaned Ginny, as she felt another orgasm approaching.

‘I can’t’ moaned Ron as he felt his cock begin to swell and shutter, closing in on his own, huge orgasm. Ron thought about trying to hold it in, chancing blowing his load inside his sister, but decided it was best not to risk it as he pulled his cock out of her. He used one hand to pull his cock out of Ginny and aim it while his other fingers remained, hard at work, on one of Ginny’s hard nipples.

The sudden removal of Ron’s cock however, was just the stimulation Ginny needed to hit her own orgasm. Again she felt warmness overtake her and a trickle of juices escape her pussy just as Ron removed his own cock.

‘Unghhhh’ grunted a sweating Ron, as he exploded, all over Ginny’s ass and back. Ron spurted out so much cum in fact, that some struck the back of Ginny’s hair, pooling in the center of her back. With a final grunt, he fired his last few loads of his hot sticky cum over Ginny’s gorgeous, white freckled ass.

‘Ahhhh’ moaned Ron, letting go of Ginny’s nipple and falling backwards onto his makeshift bed. Ginny looked back as she stood up, feeling her brother’s cum run down her back and ass. Ron seemed to be unconscious, and as the thirty minutes was about to end, she cleaned herself up and made sure the room was spotless, before unlocking the door and making her way back to her own room, completely forgetting about the Spellbook of Desires, which she had left, sitting open in the kitchen.

Harry awoke with a start, not ever remembering walking down to the living room and falling asleep on the couch. He looked down at the book in his arms, and was shocked to discover that the book was not the Spellbook of Desires; it was some old school book. Shocked and worried that he had lost the best book he’d ever read; Harry got up and looked everywhere, trying not to wake the household. After searching everywhere for the book, he made his way into the kitchen to search the last place he could think of. Just like the rest of the house though, the book was nowhere to be found. As Harry made his way back up to Ron’s room to ask him if he’d seen the book, he met Fred and George making their way down the stairs speaking quietly with each other, obviously happy about something.

‘Amazing….’ whispered Fred to George as Harry passed by them.

‘Morning Harry’ said Fred and George together as they made their way to the kitchen.

Harry made his way to his room where he questioned Ron about the missing book. Ron denied everything, saying he had no idea where the book was. Of course, he thought he did, but there was no way he was going to tell Harry. Neither of them knew of course that Fred and George had stumbled upon the fantastic leather-bound book with Harry asleep in the living room and Ginny being fucked by Ron.

It was now the twins turn to use the book, and like everything else they did, they’d be using it together!