Professor Potter (Ch. 5 - A Lesson On The Train) (Patreon)

Disclaimer: The characters in this universe start Hogwarts at the age of 15, making Iris and her friends 18 or older.

Harry sat back in his chair, watching as the sun set outside the glass panes of the compartment. The Hogwarts Express was making its way towards Hogsmeade Station once more, preparing for another magical year at Hogwarts School of Witchcraft and Wizardry. This time, however, Harry would be doing so with a new title; as Professor of Defence Against the Dark Arts.

Apparently, Harry wasn't the only one bubbling with excitement. Several female students were giggling excitedly as they walked up to his compartment, peeking through the window, with some even entering, trying to catch a glimpse of their mysterious new teacher. Rumours had spread like wildfire across the train cars over the past hour, the new DADA professor was young, handsome, and apparently single! A few daring seventh years even attempted to flirt with him, playing with the hem of their skirts innocently, and blushing furiously when Harry gave them an amused smile and a slight nod.

Harry couldn't exactly correct them on that last one. How was he supposed to tell them that he was banging four of his students-to-be? That would certainly put a damper on his popularity among the ladies... Or maybe it would only make him more popular? He shook his head, banishing the thought. No sense thinking about that now.

Instead, Harry turned his attention to the book lying open in his lap, reading over the advanced spells he planned to teach this term, one more time. It was laborious work, and likely not something he strictly needed to do, but Harry always strived to be prepared. Especially now, since this would technically be his first time teaching the subject officially.

A soft knock sounded on the door, followed by a gentle push. Harry looked up, setting the book aside as the door swung open. To his surprise and delight, it was Iris who stepped inside, beaming brightly and looking absolutely scrumptious.

He had wondered when she'd make her appearance. Iris had been unusually secretive while packing her bags yesterday, refusing to let him help her despite his persistent offers. And when they boarded the train, she had said she wanted to spend a bit of time catching up with her friends before joining him. Now, Harry realised why.

Iris stood before him wearing a short, pleated miniskirt, which would have looked straight at home at Hogwarts had the school instead been a strip club. The fabric rode up high over her delicate thighs each time she moved, giving Harry an excellent view of the edges of her pale pink knickers. Her blouse was equally revealing, the buttons strained outward by the generous curves of her chest. The top few were left conveniently undone, allowing Harry a lovely view of the valley of her cleavage. To complete the outfit, she wore long socks in the Gryffindor colours, high heels, and a pair of pearl earrings that glinted seductively in the evening light.

Iris looked absolutely stunning. Her fiery red hair fell in loose curls around her shoulders, framing her bright green eyes and the light dusting of freckles across her nose. Harry's mouth went dry and his heart began to race as Iris executed a graceful twirl, letting the skirt swirl around her thighs, providing him with a brief flash of panties and long, slender legs.

"Well?" She purred, placing her hands on her hips and arching an eyebrow playfully. "Do you like what you see, Daddy?"

Harry cleared his throat, feeling a familiar warmth spreading slowly throughout his body at the nickname. He knew better than to encourage such behaviour in public, but damn if it didn't turn him on something fierce.

"I do indeed, Miss Potter," he replied smoothly, his eyes drawn inevitably to the lush orbs of her chest. They seemed to beckon him forward, promising all manner of sinful delights. Harry swallowed hard, fighting the urge to reach out and fondle those incredible breasts. "You look lovely."

"Why thank you, Daddy!" Iris giggled, pressing herself against him suggestively. The sweetness of her perfume washed over him as she rubbed her softness against his hardening member, causing him to growl deeply.

"You know I love your touches, Daddy," she breathed hotly into his ear, grinding her hips against him in a slow, tantalising rhythm.

Harry grabbed a handful of her firm ass cheeks, pulling her closer still. He felt her breath ghost over his neck as she whispered lewd suggestions, and his fingers dug painfully into her flesh. Iris moaned in response, her hands moving to rest upon his shoulders.

This was insane. He was moments away from either bending her over the table and fucking her brains out, or pushing her up against the wall and taking her right here, right now. But neither of those options would do. Not with students wandering the halls outside. Harry was a professor now, he needed to keep a level head, no matter how much he wanted to ravish his little slut right there and then.

Reluctantly, he let go of one of her doughy cheeks, to instead reach for his wand, and cast a quick locking charm. The door to the compartment clicked shut, and the thick curtains by the windows drew closed. With the compartment secured, Harry turned back to Iris, growling low.

"You're an incorrigible girl, Iris Potter," he accused, voice rough with desire. "Calling your professor 'Daddy' in public, no less."

She pouted, but the gesture only made her seem all the more adorable. And sexy. Damn, she was so fucking sexy.

"And not to speak of this attire," he continued, gesturing towards her scandalous clothing choice. "What were you planning on doing, parading around the halls like that? You'll have half the student body following you around like amorous puppies."

Iris laughed, throwing her head back and showing off her slender neck. "So what if they do? They can dream about my juicy cunt all they want, but only you get to sink your big cock into me. Only you get to feel my tight little hole, Daddy." She looked up at him through lidded eyes, the picture of lust and sin. "Isn't that right, Professor?"

Harry's eyes darkened at the image those words painted in his mind. He gripped her hips roughly, pulling her flush against him once again. God, he couldn't get enough of this girl. Couldn't get enough of her sweet mouth, her talented hands, those perfect tits, and that delicious, tight little snatch of hers.

His own erection strained painfully against his trousers now, and Iris seemed keenly aware of it. She ground her curvy hips against his growing bulge, moaning softly.

"That's right, baby girl," he growled. "You're mine. No one else gets what's between those pretty thighs."

With that, Harry took hold of her hand and pulled her towards the small table in the middle of the compartment, bending her over it. In one swift motion, he lifted her skirt, exposing her naked rear to his hungry gaze. Iris' thong was tiny, flimsy, and practically transparent at this point, drenched as it was with her arousal, and it therefore did very little to conceal her dripping sex from his eager eyes.

Harry growled again, this time in pure appreciation. He slipped his hand beneath the thin material, his fingers sliding easily through the moist heat of her folds and straight into her dripping core. Iris sobbed in relief, pressing back onto his invading digits, trying desperately to force more contact.

"Please, Professor," she begged, hips rocking in time with his probing hand. "Fuck me already! Stuff that big cock inside me. Punish me properly for being such a naughty girl!"

Harry smirked, removing his hand from her warmth to deal with the annoying piece of fabric still covering her entrance. Slowly, he lowered her pink panties down her thighs, watching in delight as the fabric stuck to the moisture of her crotch, before finally releasing them with a satisfying pop. He pocketed the garment, enjoying the slight sensation of power that came with taking her most personal item.

Having effectively rendered her naked from the waist down, Harry wasted no further time. He unbuckled his own trousers, letting them drop to pool around his ankles, and freed his achingly hard shaft from its confines. With a long finger, he traced the tip along the soaking entrance of her sex, watching with hooded eyes as her hips jerked involuntarily upwards in search of contact. Then, in one smooth thrust, he plunged balls deep inside his little slut.

"Aaaah!" Iris cried out, her walls clenching instinctually around his iron rod as he filled her completely. Her hands shot forward to grasp the edge of the table for support, while Harry held her hips steady, savouring the exquisite warmth surrounding his shaft. He could feel her juices coating him, seeping out around his cock and running in sticky rivulets down his shaft.

"Fuck, I've missed this tight little pussy," he groaned, beginning to pump in and out in short, shallow strokes. Iris was like a warm, velvety glove wrapped around his shaft, milking him deliciously with every movement.

Harry gripped her hips firmly, using his greater strength to guide their rhythm. He kept their movements slow and steady, drawing the pleasure out as long as possible. He loved the way Iris felt pressed up against him, soft skin slick with perspiration, breasts bouncing gently with each thrust. Her bright green eyes rolled back in ecstasy, revealing the inner depths of her soul as wave after wave of pleasure washed over her.

"You fucked me just yesterday," she moaned, voice catching on a gasp as another orgasmic surge rocked through her. "Why am I so desperate for more? What are you doing to me, Harry?"

He didn't have an answer for that. All he knew was that Iris' sweet, tight cunt had become his new addiction. He needed her. Needed to feel her gripping him tightly time and again, needed to hear her scream his name as she came.

Harry picked up speed, pumping harder and faster into Iris' willing snatch. The sound of flesh slamming against flesh echoed loudly within the confined space, the muffled cries and whimpers of their passion filling the air. His own breath grew ragged as the first stirrings of climax began to coil tightly in his balls.

"That's it, baby," he grunted, digging his fingers into her ass. "Take it all. Show me how much you love my cock."

"Ahh..! Fuck! H-Ahhh!! Your big... your huge... cock stretches me ssooo goood~~" Iris babbled incoherently, hips bucking frantically against his. Another powerful orgasm shook her body, and her walls clamped down on Harry's shaft in a heavenly manner.

Iris cried out with each thrust, her body on fire with pleasure. Harry's cock filled her completely, stretching her in the most delicious way. She could feel him deep within her, his length hitting all the right spots. It was a sensation she had come to crave, an addiction she couldn't shake.

"YES! YES! FUCK ME, PROFESSOR!" Iris screamed, throwing her head back in abandon, not caring in the slightest who might overhear.

Harry continued to pound away mercilessly, loving the way her slender form shook and quaked beneath him. Her tits bounced with each stroke, the pert orbs jiggling enticingly within the confines of her shirt with every impact. He reached out for her shirt with both hands, ripping the fabric open roughly along the seams. Buttons went flying across the room, bouncing off the walls with loud clicks, and the material split down the middle, hanging off her shoulders and leaving her glorious chest on full display.

Harry took the opportunity to grab those incredible orbs in both hands, kneading them roughly as he ploughed into her from behind. Iris cried out at the sudden assault on her senses, the dual invasion sending fresh waves of arousal coursing through her veins. Harry's hands were everywhere; cupping her breasts, groping her ass, occasionally dipping down to toy with the sensitive bud of her clit. He even found time to trail hot, open mouthed kisses along her neck and shoulders, leaving marks that would surely turn heads when school started.

She was lost in a world of bliss, unable to think coherently past the mind-numbing pleasure flooding her senses. Every nerve ending in her body seemed abuzz, centred around the massive cock that filled her so perfectly. The lustful, primal noises coming from deep within Harry's throat only served to heighten her excitement further.

"I'm close, Iris," Harry warned, voice rough and strained. "So fucking close..."

"Pleaseee... let it out inside me," Iris begged, looking over her shoulder with pleading eyes. "Let your seed flood my insides, Daddy. Please... I need it..."

Harry growled low in response, giving one final, powerful thrust before stiffening, his eyes rolling back in his head. With a hoarse cry, he emptied himself deeply inside Iris' grasping heat, spurting jet after jet of his creamy essence directly into her waiting womb. The overwhelming sensation triggered another orgasm within Iris almost immediately, and she shuddered violently about his cock as his warm seed flooded her innermost regions.

And like countless times before, the second Harry's initial burst of release entered her, Iris felt the familiar, tingly warmth spread outward from her core. A magical sensation, one that caused her limbs to tremble and her vision to grey momentarily as sheer ecstasy overwhelmed her entire being. It was like a magical rush, rewarded to her for being such a wanton slut for his perfect cock, and Iris craved the feeling above all else.

Addictive didn't even begin to describe it.

Iris sighed contentedly, feeling her limbs relax under the soothing influence. Her eyes drifted shut as she revelled in the comforting glow that only Harry's cum could bring.

Harry, meanwhile, remained braced above her, breath heaving heavily in and out of his lungs. He felt the pleasurable aftershocks reverberating within his loins, his shaft twitching inside Iris' moist heat long after he'd emptied himself. Eventually, with a soft groan, he withdrew, leaving Iris spent and panting on the table.

He quickly transfigured a handkerchief into existence and cleaned them both up, mopping up the copious amounts of cum dripping down her thighs. Though he made sure there still was a sizable load left inside her, of course. Once satisfied they weren't going to leave a mess, Harry straightened his clothes and ran a hand through his messy hair.

Iris sat up slowly, adjusting her clothing and blushing fiercely. She cast a quick Reparo charm to fix her blouse, which had previously hung in tatters around her waist, then turned to face Harry with a shy yet triumphant smile.

"How's that for a welcome aboard present?" she teased, batting her eyelashes innocently.

Harry rolled his eyes good naturedly, but his heart was pounding in his chest at the memory of their public tryst. "I haven't even arrived at Hogwarts yet, and I've already fucked one of my students on the train. This is going to be some year..." He shook his head, chuckling quietly.

Iris leaned forward and placed a gentle kiss upon his lips. "You'll manage just fine, Daddy," she assured him softly, pressing her softness against him once more. "We both will."

Harry chuckled again, wrapping his arms around her slim frame and pulling her close. "You're a terrible influence on me, Miss Potter." He rested his chin atop her fiery red locks, inhaling her sweet scent deeply. "I'll be fired before the end of the week at this rate."

"Then we'd best make these next few days count, hadn't we?" Iris replied slyly, grinding her hips suggestively.

Harry groaned, pressing her away playfully. "Go on, get out of here. Before I lose what little sense I have left and drag you back onto this table."

Iris stuck out her tongue impishly and skipped out the door, leaving Harry alone with his thoughts - thoughts centered firmly around that delicious little minx who had somehow become his whole world.

But as he reclined in his seat, watching the scenery blur past outside the window, Harry knew full well there was no escaping Iris Potter, nor did he particularly want to anymore. She had gotten under his skin in ways no other woman ever had, and he was hooked. Hooked on her smiles, her laughter, and most definitely hooked on the feel of her tight, wet cunt gripping every inch of his cock.

It was only then that he remembered that he still held Iris' thong in his pocket. He pulled it out, bringing the moist fabric to his nose and inhaling deeply. It smelled like heaven, a tantalising mixture of sweet musk and fresh sex. Harry smiled widely, slipping the garment back into his robes for safe keeping.

But the image of Iris skipping through the train cars, wearing nothing beneath that tiny skirt of hers, stayed fixed in his mind. And he couldn't help but wonder how many other boys were currently ogling her as she went along her way. He wouldn't put it past his little girl to tease them mercilessly, showing off her lovely legs and tempting them with glimpses of her bare ass cheeks.

And damn if he wasn't already hard again.

Next Up: More 'Harry's Perfect Summer'! :)