A/N: This piece was written for The Harmony Shag-A-Thon, hosted by the Facebook group, Harmony & Co. All canon characters, plots, dialogue, and situations from the Harry Potter series belongs to JK Rowling. I am not profiting from this work. A huge thank you to my alpha 89JadedPictures, who very helpfully begged for more smut, and to my beta Maloreiy, who certainly made this a more readable story.

Holy Shite! Was the Boy Who Fucking Lived actually fucking Hermione Granger?

That was the thought skittering through Draco Malfoy's head the first time he found Harry Potter in a broom cupboard with his jumper missing, shirt unbuttoned, and trousers around his ankles. A dull night of ordinary prefect rounds suddenly turned surreal when Draco stumbled upon them.

Draco had assumed it was a joke, that early July morning a few months prior, when an owl arrived from Headmistress McGonagall bearing a letter inviting him back to retake his 7th year. When a prefect badge had fallen out of the envelope, landing on Malfoy Manor's dining room table with a soft clink, he had just stared at with in consternation.

Yet, here he was now—in a pair of pressed black trousers, a button down, a carefully knotted green tie, and a wool jumper—with the shiny badge pinned neatly on his chest. Every morning, just after he tied his perfectly shined shoes, that badge completed his outfit.

Soft moans floating down the corridor had alerted Draco to the distinct possibility of finding a pair of students in flagrante. Pausing to look over his shoulder, and not seeing anyone in sight, he had considered the idea of walking away, pretending he had not heard anything. Very quickly, Draco had quashed that thought. He knew there were too many people waiting for him to mess up and lose this second chance. The fact that this could be a trap, leaving Draco the one in trouble for not fulfilling his prefect duties, was a possibility.

Sighing, he had pulled his wand out of his pocket and dragged his feet towards the closed door. This is where he now stood, gobsmacked.

"Bloody hell, Malfoy! Can you at least, I don't know, stop staring and shut the door for a moment?" Potter demanded as he simultaneously tried to cover his surprisingly muscular arse by pulling down the tails of his shirt, and protect the modesty of his partner by keeping her face shielded with his body.

That broke Draco out of his trance. He pulled his eyes up from ogling the other wizard's toned thighs.

"Sure Potter, I can give you, let's say thirty seconds to pull yourselves together. But any more than that, and I'll have the door back open again, with the assumption you're trying to finish getting off rather than joining me in the corridor," he drawled. "Oh, and if you think I don't already know it's Granger down there on her knees, then you must think I have fewer brains than a Blast-Ended Skrewt. I recognize that mane of hair sticking out on either side of your arse."

Granger peeked around Potter's hip to give Draco a narrow-eyed stare.

"If you want to leave your blouse unbuttoned when you come out, Granger, I won't complain," he told her with a smirk, his eyes flicking down to her chest. He quite enjoyed the view of her pretty pink bra. This was undoubtedly the best thing that had happened to Draco since the beginning of term, he decided, as Hermione Granger once again hid her flushed face behind Potter. He turned away with a laugh, shutting the cupboard door to give the duo some privacy.

Taking a deep breath, Draco also took a moment to reach down and adjust himself. Hopefully they had not noticed the slowly forming bulge. He chose to lean his back against the cool stone wall directly across from the door, placing one hand in his trouser pocket. It seemed prudent to keep his wand out, twirling it while he waited.

It was less than a minute when the door opened to reveal Potter with his jaw clenched and a steely look in his eyes. He had managed to get his clothes mostly back in their proper places, excluding his conspicuously absent red and gold tie. Potter had one hand in front of his body, holding his wand loosely, being careful to allow Draco to see it, but not to point it directly at him. The overall threatening mien was ruined by hair that was impossibly messier than usual. Potter's other hand reached back behind him, fingers entwined with Granger's.

Red, bee-stung lips were the only indicator of what Granger had been doing to Potter just minutes ago; she looked as perfectly put together as she did every morning while spreading her jam on toast at breakfast. Defiantly staring him in the eye, Granger jutted her chin out, almost daring him to speak first.

Too bad he couldn't manage to formulate a coherent sentence with his head full of images of pulling her back into the closet and taking the place Potter had just occupied. Before emerging, she had pulled her hair up, but in his mind, Draco had a hand wound through her loose curls while her full lips engulfed the head of his…

Best not to go there, he reminded himself. Doing his best to appear intimidating, rather than aroused, he pushed off of the wall and stood his full height. He licked his lips, before allowing them to slowly curl into a knowing smile. "Out after curfew, Potter and Granger. How many points do you think I should take from you for that?"

Raising her nose ever so slightly, Granger gave him a haughty look. "We're prefects too, Malfoy. You can't deduct points from us," she told him, letting go of Potter's hand to cross her arms below her breasts. Breasts he now knew were encased in pale pink lace. He did his best to keep his eyes on her face.

"On the contrary, Granger, it is not your night, or Potter's, to do patrols. And if it was, I suspect pausing in a broom cupboard to perform fellatio would not constitute fulfilling your duties."

Matching blushes spread across both Granger and Potter's faces.

A heady feeling of power spread through Draco. Neither of the Gryffindors before him appeared particularly embarrassed by what they had been doing, only by being caught doing it. Quickly, he calculated the odds of why they were hiding and what he could gain from knowing that. There had been zero indication before tonight of a relationship between the war heroes, nor had any of the gossip he'd expect to accompany such a revelation yet spread around Hogwarts.

"What are you going to do about it then?" Potter asked with an almost imperceptible slump to his shoulders. When Potter followed that up by allowing his wand hand to drop by his side, Draco understood he held some power over them.

Granger did not have the same resigned air; she held her wand in a deceptively loose grip, which Draco recognized would allow her to quickly cast nearly any spell. It was Granger who Draco determined he would have to keep a more careful eye on.

"Tell me, does Weasley know where the other two-thirds of the Golden Trio have gone off to this evening?"

If he had not been staring at Granger, Draco might have missed the tick of her left eye.

The witch is quite excellent at bluffing. It was not the first time this thought had occurred to him. Umbridge's reign and subsequent downfall within the school came to mind.

"Ron and I aren't together."

Her prevarication would have worked on a first year Slytherin, perhaps. A guileless Hufflepuff would have accepted it without question. Draco just chuckled.

"And the Weaslette? Is she aware you're shagging your best friend, rather than her?" he asked, sparing Potter a glance. The shorter wizard shook his head.

"Harry!" Granger hissed, eyes widening in horror. Draco watched, with barely contained glee, as she smacked Potter on the arm.

"He already knew, Hermione. He isn't stupid," Potter told her, rolling his eyes.

Again, Draco could not help chuckling.

"He didn't know. He only suspected," she snapped, "until you mucked it up."

Potter's mouth dropped open and he turned from Hermione to look at Draco. "Is she right?"

"Of course she is. You of all people should know she's hardly ever wrong. There was the smallest possibility that the two redheads, whom everyone expects you to be dating, were actually in on this secret and helping you keep it from the hordes."

A look of smugness at being proven correct, along with confusion—most likely regarding the backhanded compliment he had just given her—and finally calculation, chased each other across Granger's face in quick succession.

God! The tilt of her head and her blatant appraisal as she assessed him was sexy.

Moving forward, Granger stood face to face with Draco, tipping her head up to look him in the eye, not seeming intimidated by the height difference. "So, what will it be then, Malfoy? House points? Humiliation?" She paused. "Or blackmail?"

"I think we have… options," he said in a low tone, enjoying the way her eyes widened and her pupils dilated. A chill ran down his spine when her gaze dropped to his lips before she drew in her own bottom lip between her teeth.

Potter was quickly at her side, an arm slung protectively around her. "You don't have to do anything the git says, Hermione. We've been sneaking around long enough. It's time we told Ron and Ginny."

"First of all, Potter, what would be the fun in that? And secondly, my offer wasn't just for Granger."

Watching Potter sputter would have been comical if Draco had not also noticed the other wizard's glance down to the placket of his trousers and the ensuing blush when he realized he had been caught doing it.

"You Gryffindors blush far too easily. The fact you've managed to hide this situation at all is astounding," Draco scolded them, disclosing a possible setback to his slowly forming plan. "To answer your question, Granger, I don't intend to do any of those things. I propose you consider tonight a lesson in discretion."

He had made his intentions clear enough without being so blunt they could outright refuse something he had not fully offered. Deciding that was enough for now, he made a show of checking the time on his pocket watch.

"Yes, well, if that's all, Malfoy, thanks for the warning, and I suppose we'll be seeing you around." Hermione practically tripped over the words as she grabbed Potter's hand and began to drag him away.

"But-"

"Shush, Harry!" Granger cut him off in a loud whisper. "We'll talk about this later. Just the two of us."

For his part, Potter allowed her to yank him down the corridor, only glancing back once, just before they turned the corner. Draco winked at him, then smirked when it caused Potter to nearly fall over his own feet.

Later that night, behind carefully drawn and silenced bed-hangings back in his dorm room, Draco allowed himself to fully formulate how he wanted this to play out.

Slowly, he stroked his cock, playing over again in his mind what he had seen in the broom closet. He had not managed to get a view of Potter's prick, but no matter, he could imagine what it looked like—hard, standing out proudly, glistening with Granger's saliva. He now knew the general size and shape of Granger's tits, and that was enough to fuel this particular fantasy.

Granger's shirt was once again open and her bra was visible, but instead of pink lace hiding her breasts from his view, the fabric had been pulled down, revealing puckered nipples. She held the base of Draco's cock firmly in one hand and squeezed his arse, nails biting into his skin, with her other. Her smart little mouth was working its way up and down his length. Just like he had imagined in the hallway, his hands were buried in her hair. He was torn between gently guiding her movement to draw out the sweet torture and keep her from going faster, or holding her still so he could buck roughly into her hot, wet mouth.

Popping her mouth off, she lazily licked her way around the swollen head before she turned to the other man in the broom cupboard with them. Draco tore his gaze away from the witch on her knees before him to also take in the sight of his former nemesis wanking to the view. In a sultry voice, Granger purred, "I thought you wanted a turn at him this time, Harry?"

Harry's hand slowed down. He cleared his throat, and his eyes darted from Hermione's face down to her hand. "I told you, I don't know what to do."

"And I told you, I can teach you," Hermione countered, taking her hand off of Draco's arse to reach out towards Harry. "Come here."

Harry took Hermione's hand and allowed her to pull him down beside her. Uncertainty filled his eyes as he came level with Draco's very hard cock. Hermione loosened the grip of her hand still holding his base enough to move upwards, then down, pulling the foreskin back to reveal him fully. His head was dark red, with a drop of liquid forming.

"Take a taste," she urged Harry, licking her lips. Draco watched her free hand sneak up under her skirt.

Draco let out a groan.

Darting his tongue out, Harry did as Hermione commanded, laving the tip. Following the single long swipe, he pulled back slightly, a contemplative look on his face as he mulled over the taste of Draco's salty essence.

With a squeeze of her fist, Hermione managed to get another drop to immediately form. "Again," she commanded, in a throaty, bossy voice that Draco found he liked very much.

Keeping his eyes on what he was doing, Harry went in for another taste. This time he lingered, licking a few times, moving his tongue all across Draco's swollen glans before he moved away. As he did, Draco got a better view of the way Hermione's hand was moving at a steady pace under her pleated uniform skirt. Her mouth was open as she breathed heavily, her cheeks flushed, her pupils fully dilated.

"Take the head in your mouth, Harry. You can lick and suck all around it. Use your tongue to swirl and do those same things you like to do to my clit." Draco watched in fascination as Harry did as he was told.

Fuck, he was close to coming.

"You just concentrate on doing that, Harry, I'll take care of the rest."

Her had slid up and down his base, squeezing and twisting, exactly how Draco liked it, while Harry sucked and licked greedily at the end of his cock. He felt the telltale tingling begin deep in his bollocks and tried to hold out, watching Hermione rock back and forth on her hidden hand. When a shudder wracked her body and her back arched, he admired the way her eyes fluttered shut and her mouth formed a silent 'oh.' Her hand stuttered its pace on his aching prick, but it didn't matter, as he was at the point of no return already.

"I'm going to come in your mouth, Harry," he grunted out a warning. The bespectacled wizard paused, but did not remove his mouth as he looked up for the first time since he had knelt down, and locked eyes with Draco. And Draco started to come…

…all over his own hand and bedding.

This story will have (no surprise here) five chapters. Let me know what you think of this first one!