MY ONE MISTAKE

My One Mistake
Author: tas
Harry/Severus

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This fic is written for contest #5 for the Silversnitch.
Category: Love Eater - challenge #6
Challenge: Harry is working as an Auror and is undercover as a prostitute in Knockturn Alley. Having just decided to call off surveillance for the night, Harry begins walking away. Severus sees through Harry\'s glamour and is shocked. He confronts the Boy-Who-Lived about his choice of profession.

I was voted third in this category.

Dislaimer: I own no rights to the Potterverse characters, that right belongs solely to J.K. Rowling, a woman that started my Pottery obsession. I write solely for fun and for the readers out there that like to read my twisted world of Harry Potter, and receive no compensation for doing so.
Summary: Harry had one of the best nights of his life with the love of his life, but a mistaken misunderstanding kept them apart for five years. Harry comes back to work undercover on a kidnapping case as a special ops auror. A certain Slytherin and a mischievous imp there to welcome him home.
Warning: Rated NC-17 for profanity, drug use, and graphic sexual acts. This is SLASH, so if that kind of freaks you out, don’t read. Some of the characters are a ‘bit’ out of character and there is MPEG, so be warned. Oh....and Sirius is not dead in this fic.
Thanks go to my beta for this fic.....Allexandrya.

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Prologue


Harry Potter, now the actual Savior-of-the-wizarding world sat with the other seventh year students of Hogwarts, the school for witchcraft and wizardry on the raised dais at the front of the Great Hall. He looked out at the friends and family of the graduating class, smiling in response to Sirius’s over eager wave to him.

He didn’t actually think he’d make it this far...to actually defeat Voldemort ...and be graduating. He almost didn’t. The final battle, if you can call it that, was unexpected and quick. With the help of his defense group, Severus Snape, and surprisingly Draco and Lucius Malfoy, he devised a plan to defeat Voldemort once and for all.

He was tired of the constant threat to his life, and his friends. Instead of waiting for Voldemort to come to him, Harry went after him. It was during an inner circle death eater meeting that Lucius and Severus were a part of, that Voldemort met his demise. He had piggy-backed onto Severus’s apparation to the meeting using a disillusionment spell to make him invisible. As Voldemort plotted and cursed, Harry stealthily crept in front of Voldemort, the Sword of Gryffindor gripped in his steady hand. He aimed the sword at Voldemort’s heart, then made himself visible...right before he sheathed the sharpened sword through his black heart.

Harry smiled to himself remembering the shocked and pained expression on Voldemort’s face. As he twisted the sword inside him, literally cutting the heart in half, he incanted the spell to send Voldemort’s soul to hell, non-recoverable by any light or dark spells. He conjured a bright red bow and attached it to Voldemort and portkeyed the body to the Ministry of Magic, interrupting an Auror meeting.

In his determined state to finally kill Voldemort, he vaguely felt the curses and hexes thrown at him by the other death eaters, or the venomous fangs of Voldemort’s pet snake, Nagini, sink into his upper thigh. He glared down at the snake and booted it in the head, dislodging the fangs from his leg, ripping the skin open, then buried the sword through the snake’s head, pinning the now dead carcass to the floor. Behind him, Lucius and Severus were holding their own with the other six death eaters in the room. He was able to stupify a death eater that was about to cast the killing curse to Severus before he collapsed to the floor.

He just was released the previous day after being in a comatose state for two weeks, with Madame Pomfrey and Severus working around the clock to administer spells and potions to heal him and drain the snakes poison from his body.

Looking over at his ally and reluctant friend, he inwardly laughed as Severus sneered at all the happiness around him. Severus had been the one that pushed him to be the person he was, never letting up on his training or lessons. Without him he wouldn’t probably have graduated...or survived. He was going to miss the snarky git when he started auror training next month.

“Hey Harry, you’re almost up,” Ron said, nudging his side to get his attention.

“Still pining for Severus, Potter?” Draco asked from behind him, smirking at him knowingly.

“Shove off Malfoy,” Harry glared behind him, “or I’ll tell daddy about you pilfering the alcohol from the manor for the party later,” he smirked.

“Git,” Draco said.

“Ferret,” Harry came back.

“Enough already,” Hermione admonished, “you’re next Malfoy.”

As Draco made his way up to the podium when his name was called, Harry glanced to Severus again and met his gaze. Severus then licked his lips as he looked at him, Harry following it as his cock sprang to life. He just imagined what that tongue could do...not to mention those hands...and his voice.....

He was brought out of his erotic musings by his name being called, and the small smirk Severus gave him as he shifted on his seat. He really was quite grateful for the robes they had to wear for the ceremony.

Now that he was no longer a student, there was nothing stopping him from making some of his dreams come true. He wanted Severus, and he was determined to end up in his bed by the end of the night.


~*~


Midway through the dance, after dancing with most of the seventh years, Harry stood at the punch bowl with Ron and Seamus sipping the spiked punch. “So is tonight the night mate?” Ron asked.

“I still wager you can’t do it Harry,” Seamus grinned. “No one has ever won the yearly wager for shagging the greasy git.”

Harry glanced at Seamus, wanting to wipe the smirk off his face. Severus was not greasy. His hair looked sleek and soft, and he so wanted to tangle his fingers through it as he plundered his lips. He slowly lowered his glass to the table, not looking back at his two housemates as he made his way across the room to the professor’s table.

“Excuse me Professors,” Harry smiled to his teachers and mentors, locking eyes with Severus. “Care to dance Severus?” he grinned.

“I don’t.....” Severus began.

“Go on Severus,” Dumbledore urged.

“I’ll dance with you Severus,” Minerva grinned.

“Please,” Harry said, his eyes twinkling much like the old man’s.

Severus looked at the surrounding faculty around the table who nodded in encouragement, then back at Harry. “Very well. I don’t have much of a choice, do I,” he said seeing Dumbledore’s eyes twinkling.

“Of course you do Severus,” Harry smiled, leading the way to the middle of the dance floor.

Harry put his arm over Severus’s shoulder while he grasped Severus’s warm hand in his on the other’s chest. “I never got to thank you Severus,” Harry quietly said, looking into his eyes, his fingers slipping to the nape of his neck.

“For what Harry?” Severus asked, personally liking the way his name sounded coming from those very kissable looking lips. He had given him permission to address him as such early in their training together.

“For saving me, being there for me,” Harry replied, slowly stepping closer as they swayed to the music.

“What are you doing Harry?” Severus nervously asked as he felt Harry press closer.

Harry leaned closer, nuzzling his face against Severus’s neck, his lips ghosting over the skin. “I’ve thought of you a lot Severus. Imagining the feel of you...the taste of you,” he quietly said, brushing his tongue around the shell of his ear.

Severus closed his eyes as a shiver ran down his body. “Harry,” he huskily said. “It’s not right.”

Harry pushed his hips forward, moaning when he felt an answering hardness press again his. “It feel so right. Gods....I want you Severus,” Harry groaned, trailing his lips down Severus’s neck, nibbling the skin. “I want to taste you...all of you.”

“Harry,” Severus whimpered.

Harry looked up to meet Severus’ smoldering gaze. “I know you want me Severus. Your body can’t lie,” he said grinding his hips forward. “I would like to get to know you, but if all you will give me is this one night, then I’ll take it.”

Severus nodded, then tightened his arms around Harry’s back, leaning in to kiss Harry’s neck. “Meet me in my rooms,” he softly said by his ear. He then stepped back, adjusting the front of his robes before turning and leaving the hall, not seeing the money changing hands at the faculty table.

Harry went back to the punch bowl and finished his drink, ignoring the nosy questions from his housemates. “See you guys around,” he smirked then left to meet a certain snake.

“You so owe me,” Ron grinned at Seamus. “We won’t see him until tomorrow now.”

“We’ll see,” Seamus laughed. “Harry has actually got to shag him. Not just sit and talk all night like they sometimes did before.”



As soon as Harry entered Severus’s personal rooms, his back was pressed against the door, lips latched onto his in a hungry kiss. Robes were quickly discarded, nimble fingers working at the many buttons of their shirts. He moaned into the kiss as he felt warm hands caress his bare stomach, then move across his sides, to his back.

Severus reluctantly drew away from the earth shaking kiss and leaned his forehead against Harry’s, their breathing ragged and heavy. “This is insane Harry. Why me?” he asked.

Harry shifted around until their positions were reversed. He lightly kissed Severus’ mouth. “You are an amazing person Severus. You are smart, have a wicked sense of humor, caring when you let it show, and....sexy as hell to me,” he grinned as his hands glided across Severus’s naked chest.

Severus gave a low moan and threw his head back as Harry began to kiss along his chest. Harry lowered his lips to a nipple, brushing his tongue around it, then lightly blowing on it while his hand skimmed down the quivering stomach to the waist of his pants.

After laving and sucking the one nipple for several minutes, Harry moved to the other as his hand went lower to palm the very erect cock through the pants. He rubbed up and down the length, encouraged by the thrusting of Severus’s hips, a hand pulling his head closer, and the deep moans coming from his soon to be lover.

Severus reached down and quickly unzipped his pants as Harry’s wet lips moved further down his stomach. Harry helped him step out of his pants and boxers, his cock hard and at attention.

Harry knelt down in front of Severus, wrapping his fingers around the shaft. “Gods...” Harry moaned seeing the drop of pre-cum at the engorged head. He stroked the length in long slow strokes as he reached down to free his own rock hard cock. He leaned forward, circling his tongue around the head, savoring the bittersweet taste of him.

“Fuck....oh gods...more please Harry,” Severus panted as he bucked his hips forward, wanting to have that hot mouth surrounding his cock.

Harry licked his lips and slipped the head into his mouth, his tongue flicking around the hard flesh. While he took him deeper in his mouth, he took the vial of lubrication potion out of his pocket. He moaned when he felt Severus grasp the hair at the back of his head, pulling him closer until he was deep-throating him.

Severus looked down and almost came right then, seeing Harry’s hand stroking his own very impressive erection, not to mention the lips stretching to take him all in. He felt lubricated fingers slip between his legs, running up and down the crease before teasing his entrance. He spread his legs as he felt the finger slip inside of him, slow and deep.

“Oh gods...more,” Severus moaned, stroking the base of his cock while Harry’s mouth moved faster up and down his length.

Harry added another finger, almost gagging when Severus thrust his hips forward after rubbing against his prostate. He relaxed his throat as the cock pulsed in his mouth, eagerly swallowing the cum that coated his throat.

Severus pulled Harry to his feet to ravish the swollen lips in a heated kiss, his tongue probing through to meet his. His hands slid down Harry’s lower back, urging the writhing hips to move faster against him.

“Mmm....stop,” Harry panted, stepping back. “I can’t hold back too much ...longer. Turn around.”

Severus saw the raw need in Harry’s eyes and turned around, his hands braced on the wall. “Now, Harry...need you inside of me,” he huskily said, spreading his legs. He felt Harry’s hands on his hip as the head of his cock slipped past the first ring of muscle. He pushed back, moaning at the burning fullness inside of him.

“Fuck....Sev...so tight,” Harry hissed between clenched teeth, holding still.

“Move,” Severus hoarsely said, for Harry to draw back slowly, then slowly slide back in. “Fuck Potter...fuck me already,” he groaned.

Harry slowly pulled back until just the head of his cock was embedded, then slammed in hard and fast.

“Yess,” Severus moaned as he pushed back against Harry’s frenzied thrusts. His hand went down to stroke his renewed erection in time with Harry’s maddening rhythm.

“Sev’rus,” Harry cried out as he thrust deep, grinding in as his orgasm ripped out of him. He leaned forward to wrap his arms around Severus’s waist, his fingers slipping in the cum on Severus’s stomach and hand.

“Do you think we could make it to the bed?” Severus huskily asked, turning his head to look back at his lover.

Harry carefully slipped out of him, then did a wandless cleansing spell over them both. Severus led Harry to the bed and finished undressing himself then Harry, placing soft kisses on Harry’s shoulders and neck. They lowered to the bed, Severus kneeling over Harry. “Magnificent,” he softly said looking down at the body beneath him, his fingers tracing the contours of Harry’s body.

Harry reached his hand up to Severus’s cheek, sliding up to slip into the silken hair at the back of his neck. Harry looked longingly into Severus’ eyes. “I’ve wanted this for so long Severus,” Harry huskily said pulling the other down. “I love you,’”he hissed in parseltongue right before lips touched lips.

Severus didn’t know what Harry had hissed at him, and wasn’t going to fret over it, feeling Harry’s tongue stroke his lips. He savored the unique taste as their lips and tongue teased each other. He slowly trailed light kisses across Harry’s jaw, down to the arched neck. His teeth grazed the heated skin, nibbling, then sucking the skin into his mouth, marking Harry as his own.

Harry’s hand went over Severus’, guiding it down his trembling stomach to his cock. His fingers joined Severus’ as they slowly stroked the hardening length. His leg went to the back of Severus’ leg, hooking behind to shift him onto his back. Severus slid his leg higher up Harry’s thigh to his waist, moaning when he felt Harry enter him again.

Their hands were everywhere as Harry set the slow but steady pace, wanting to memorize the feel, the taste, and the sounds that Severus made. If this was going to be the one and only night, he didn’t want to forget anything about it.

Harry’s hands slid up Severus’s arms to clasp their hands together at the sides of Severus’s head. Their gazes met, and locked as the thrusts became more deep and forceful, both shuddering with each thrust. Their climax crept up on them, their lips meeting in a languid kiss. Their soft moans filled the room as they went over the edge, Severus milking him dry with the tightening walls, and Severus’s release splattered on both of their stomachs and chests.

Harry slowly withdrew and shifted to lay at Severus’s side, smiling against his neck as a strong arm went around his back, holding him close. They both drifted off to sleep, sated and content in each other’s arms.


~*~


The next morning Severus woke feeling the warm naked body beside him. He carefully moved to lay on his side, while Harry flopped over to lay on his back, the sheet bunched down to his waist. He looked down at his leisure, taking in the muscled chest and stomach of his lover....his Harry.

He slowly disentangled himself from Harry’s over lapping legs and sheets, casting a quick cleansing spell on himself before quietly dressing. He decided to let Harry sleep while he went to raid the kitchen for their breakfast.

He quietly made his way up the dungeon steps, bypassing the few students as they levitated their trunks behind them. He smiled to the few, not seeing their surprised faces as he continued on his way. His steps faltered as he heard the unmistakable voices of two of Harry’s friends...Weasley and Finnigan. He pressed himself to the wall as he heard them come closer, his spying background making it second nature.

“Looks like I won Finnigan,” Ron laughed. “Harry never came back last night.”

“You don’t know that they actually shagged Ron,” Seamus said.

“Oh, come on Seamus. Harry had Snape at the first kiss to the neck on the dance floor.”

“Fine. I’ll get you the money. Just make sure Harry gets his share,” Seamus sighed.

Severus closed his eyes as the pain of betrayal slammed through his body. He shouldn’t have been surprised. It felt too good to be right. He retraced his steps back to his rooms, his heart twisting painfully as he saw their clothes haphazardly thrown around the room from their haste to have each other. He stopped at the bedroom door, gazing longingly at the man in his bed.

“Accio Potter’s clothes,” he quietly said, for all of Harry’s clothes to fly into his hands from the living room and the bedroom.

Harry woke up hearing Severus’s deep voice, smiling as he opened his eyes. The smile froze on his face when he saw the intense look on his lovers face. “Severus?” he asked worriedly.

“Potter. Get up,” Severus briskly said.

“Severus. What happened?” Harry asked sitting up.

“That’s Professor Snape to you, Potter,” Severus sneered. “Get dressed and get out.”

“But Severus....”

“Now, Potter. I will not repeat myself. Get dressed and get the fuck out of my rooms,” Severus glared.

“But...last night...” Harry began, his eyes prickling with unshed tears.

“Last night was a mistake. It. Will. Never. Happen. Again,” Severus said through clenched teeth. “Do not be here when I get back,” he added then stalked into the bathroom. He quietly put up a silencing spell before finally letting his grief overtake him. He waited until he heard Harry dress and leave before he came out.

The first thing Severus did was to strip the bed, piling the bedsheets in a pile before incendio-ing them, the smell of burning sheets overtaking the smell of Harry. After vanishing the ashes, he sat in his favorite chair in front of the fire, open bottle of firewhiskey in hand.



Harry had numbly dressed, clutching his robes and tie in hand as he left the dungeons for the last time. He headed straight for Dumbledore’s office, wiping his eyes before entering.

“Ah...Harry,” Dumbledore smiled, “hope you had a pleasant night.”

“If was fine, Sir,” Harry replied, his voice emotionless. “Would it be possible for you to arrange for me to leave for Auror training earlier?”

“What about your holidays with the Weasley’s?” Dumbledore asked, sensing Harry’s pent up sorrow.

“I just want to get into it, Sir...keep busy.”

“What about Severus?” Dumbledore asked.

“What about him?”

“I thought you two had something...” Dumbledore began.

“It was a mistake,” Harry interrupted. “Can you arrange it, Sir?”

“For when?”

“Today,” Harry replied.

“I’m sure it won’t be a problem Harry.”

“I’ll be back after I change and gather my things.”

Harry left Dumbledore’s office to go to his dorm room. Hermione, Ron, and Seamus were sitting on Ron’s bed, exchanging wizard cards.

“Harry, you’re back,” Hermione smiled in greeting.

“Have a good time with Snape last night Harry?” Ron asked.

“It was memorable,” Harry softly said. “I’ll be seeing you guys later,” Harry added transfiguring his clothes from the night before to jeans and a t-shirt.

“But Harry, you’re supposed to come to the Burrow,” Ron said.

“Change of plans.”

“Well, here’s your money Harry,” Seamus smiled, handing him the muggle bills.

“For what?” Harry asked.

“For winning the wager. For shagging Snape,” Seamus replied.

“Sorry to disappoint you, Finnigan, Weasley...but Snape and I talked all night. I tried......but he turned me down,” Harry said, his voice hoarse with unshed tears. “See you guys later.”

Dumbledore welcomed Harry back into the office. “Harry, are you sure about this?” he kindly asked.

“Sir, I need to do this....was a mistake,” he said, the last part whispered.

Dumbledore came forward and hugged Harry close. “Anytime you need to talk Harry, I’m here for you,” he softly said.

Harry clung to Dumbledore’s robes as the damn burst, his tears finally falling free. “I was such an idiot. Why did I even believe that he would love me? Why would something good happen to me?”

“You will find happiness Harry,” Dumbledore said, letting Harry cry his tears.

Once Harry felt drained from crying, he stepped back and used a spell to rid himself of the red puffiness of his eyes.

“Anything you’d like me to tell Severus?” Dumbledore asked, while Harry grabbed a handful of floo powder.

“No,” Harry shook his head. “It didn’t mean anything to him. He won’t care,” he added as he disappeared in the green flames of the fireplace, flooing to the Ministry Auror office.


tbc