Harry Potter and the world of Reversed Sexual libido (SI as Harry)

As morning light filtered through the castle windows, Harry's eyes snapped open from a deep sleep. The magical ping inside his mind was impossible to ignore - his detector spell had caught Voldemort attempting to manipulate him again. He could already feel the rising tide of anger building, an unfamiliar rage threatening to overwhelm his senses.

"Fuck, not now," Harry growled, throwing off his covers and hastily pulling on clothes. The darkness lurking at the edges of his consciousness felt different this time - more insidious. His trap had worked perfectly, allowing him to catch the exact moment Voldemort tried to influence him. But now he needed to act fast before losing control.

Harry burst into the common room, finding his friends already gathered for their morning routine. "Lake. Now. We need to meditate," he commanded, his voice tight with barely contained fury.

"But Harry, we have something important-" Hermione started to say, but he cut her off with a sharp gesture.

"Later. If I don't get this under control, I won't be good for anything except breaking shit," Harry snapped, already heading for the portrait hole. The others exchanged meaningful looks but quickly fell in line behind him.

The trek to the Black Lake was tense, Harry's magic crackling dangerously around him. The autumn air was crisp and cool, mist still clinging to the water's surface. Without ceremony, Harry dropped into his meditation pose at the water's edge.

"Join me. Now." His tone brooked no argument. Soon they were all seated in their usual circle - Harry, Ron, Hermione, Neville, and Lavender. Only Parvati was missing.

Harry closed his eyes, focusing inward on the roiling sea of magic within him. The anger burned hot, foreign and invasive. He pictured it as a crimson tide trying to drown his true self. Breathe in. Hold. Release. With each cycle, he pushed back against Voldemort's influence, using his meditation techniques to calm the storm.

Minutes stretched into an hour as Harry wrestled for control. Gradually the rage receded, leaving him clearheaded once more. He opened his eyes to find his friends still deep in meditation - all except Ron, who was practically vibrating with excitement.

"Alright," Harry sighed, feeling centered again. "What was so bloody important that you all were bursting to tell me?"

The others slowly came out of their meditative states. Ron's face split into a massive grin. "Mate, it happened! Last night - I got hard! Without any potions!"

Harry's eyebrows shot up. "You're serious? Actually got it up naturally?"

"He really did," Hermione confirmed, looking both clinical and pleased. "We were running tests with Padma..."

"Wait, Padma? Where was Lavender?" Harry asked.

Lavender rolled her eyes. "Stuck in detention with Flitwick. Got caught copying Parvati's Charms homework again. But Parvati brought Padma in to help with the experiment."

Ron's ears went red as he explained: "She had to work at it for ages, you know...down there. But I kept focusing like we practiced, willing the magic to flow. Then suddenly - boom! Full mast!"

"The diagnostic spells showed a definite spike in magical energy right before it happened," Hermione added excitedly. "Though I wish I'd found a spell to track the exact flow patterns..."

Harry waved off her academic frustration. "This is huge progress. The meditation must be the key difference between Ron's success and Neville's attempts." He turned to his still-struggling friend. "No offense mate."

Neville shrugged good-naturedly. "None taken. Gives me hope though - I'll keep at the meditation."

As they headed back to the castle for classes, Harry's mind raced with possibilities. If they could crack this, develop a reliable way for wizards to bypass potion dependency... the implications were staggering. Not just for his own plans to build a willing harem, but for wizard society as a whole.

The morning passed in a blur of lessons. Harry was distracted, remembering Professor McGonagall's heated whisper two days ago: "Any time you want me, Potter. Any time at all." His cock twitched at the memory of her submission.

When lunch finally ended, Harry caught Hermione and Lavender's eyes. They knew that look by now. With quick nods, they followed him toward McGonagall's office instead of their afternoon classes.

Harry knocked once before entering. The sight that greeted them made his mouth go dry...

The moment he pushed the door open, Harry's eyes widened at the sight before them. McGonagall lay naked across her large oak desk, hair loose and wild, body arched invitingly. Her mature curves glistened with a sheen of sweat in the afternoon light.

Hermione and Lavender froze behind him, clearly shocked at seeing their stern professor in such a state. McGonagall's eyes were hungry as she looked at Harry.

"I've been waiting, Mr. Potter," she purred. "Thinking about that thick cock of yours all morning..." Her hand slid between her thighs.

Hermione squeaked in surprise. Lavender gripped her friend's arm nervously.

"Professor, we should go..." Hermione whispered.

McGonagall's throaty laugh cut her off. "Stay, Miss Granger. Mr. Potter promised me a proper fucking, and I intend to get it. You two can join us - I've heard from him how wet you get in class and use his hands."

Harry smirked, already unbuttoning his shirt. "You heard her, girls. Strip and get on your knees. Show our dear Professor what good students you are."

The girls hesitated until McGonagall spread her legs wider, two fingers pumping into her dripping cunt. "Please girls... I need it so badly..."

Seeing their respected teacher begging like a wanton slut broke something in them. Soon all three women were naked, Hermione and Lavender crawling toward the desk as Harry shed the last of his clothes.

"That's it," he growled, thick cock bouncing free. "Show me what eager little sluts you all are."

"Start with her tits," Harry commanded them as he moved behind McGonagall's prone form. "Show her what young tongues can do."

Lavender eagerly latched onto the professor's left breast, tongue swirling around the hardened nipple. Hermione hesitantly took the right, then grew bolder as McGonagall moaned. The professor writhed under their dual assault.

"Fuck..." Harry breathed, watching his friends worship their teacher. He gripped his thick shaft, pressing it against McGonagall's slick entrance. "Been thinking about ruining this pussy all morning."

He slammed in balls deep, making the desk creak. McGonagall screamed in ecstasy, back arching sharply. "Yes! Merlin yes, Potter! Fuck me like the slut I am!"

Harry set a brutal pace, the sound of flesh slapping filling the office. His hands gripped her hips bruisingly hard. "Such a fucking whore for my cock, aren't you Professor? Right in your own classroom."

"Yes! Your whore! All yours!" McGonagall babbled between thrusts.

Hermione and Lavender grew bolder, hands roaming the professor's body as they sucked and nibbled her breasts. Lavender slid two fingers into McGonagall's mouth, moaning as the older witch eagerly sucked them.

"Switch places," Harry ordered after several minutes. "Hermione, eat her ass. Lavender, get that clit."

The girls obeyed instantly, arousal overcoming any remaining hesitation. Hermione's tongue probed McGonagall's puckered hole while Lavender attacked her swollen clit. The combined stimulation had the professor thrashing and screaming.

"Gonna cum," Harry growled. "Take it all, you fucking slut!"

McGonagall climaxed hard as he flooded her pussy, her whole body shaking. But Harry wasn't done. He pulled out, cock still rock hard.

"Lavender, on the desk. Professor, eat her out while I fuck that tight ass of yours."

"Yes sir!" Lavender scrambled onto the desk eagerly, spreading her legs. McGonagall dove between her thighs hungrily, tongue delving deep as Harry lined up behind the professor.

"Fuck, your ass is tight," he groaned, pushing slowly into McGonagall's back entrance. She moaned into Lavender's pussy, making the younger witch squeal and buck her hips.

"Hermione, get under the desk and lick the Professor's cunt," Harry commanded. "Clean up my cum like a good girl."

Hermione slid beneath them, tongue eagerly lapping at McGonagall's dripping hole. The professor's muffled moans grew louder as pleasure assaulted her from all sides.

Harry's thrusts grew harder, his balls slapping against McGonagall's soaked pussy with each movement. "Such a fucking whore, taking it in both holes while eating out my little slut..."

Lavender came first, screaming and grabbing McGonagall's hair. The professor followed moments later, her orgasm triggering Hermione's beneath the desk. Harry roared as he filled McGonagall's ass with a second load.

But he wasn't finished. For the next forty minutes, he fucked each witch in turn - Lavender bent over a chair, Hermione pressed against the window, McGonagall on her knees. By the end, all three women were thoroughly satisfied and covered in his seed.