A/N: Hello, people. Welcome to Spur of the Moment, now completed. This is a Harry/Severus slash. There will be sexual situations between two men, adult situations. There will be violence, mild swearing, and character deaths in this story. If any of this bothers you, do not read and do not leave rude reviews about my story content.

Disclaimer: I own nothing of the Harry Potter world. If there is anything that is not from the original Harry Potter books and universe than it is mine. I make no money, do not sue or report.

For those of you who have already read this story and happen to reread it, you might notice some changes. I am simply reposting every chapter as I am editing the story. Nothing major, just fixing up spelling/grammar errors and fixing things that may not have made much sense or didn't really work. Nothing is being taken from the story line, the edits will not change the story. It is just basic editing taking place. :)

"No, Albus. I will not do it," Severus Snape snapped at Albus Dumbledore who simply smiled at him.

"You must. You two are most important in this war and must work together," Dumbledore told him.

"Professor," sixteen year old Harry Potter finally spoke for the first time in nearly twenty minutes. "I get that you want us to work together and if it helps with the war, I'll do it, but Professor Snape hates me. I don't think he'll ever work with me."

"See, Severus? Harry is willing to work with you." Dumbledore smiled at his two favourite boys.

"He hates me as much as I hate him." Snape crossed his arms and glowered at the headmaster.

"I'm sure you are both more than capable to put aside old arguments, build a trust, and work together to end this war," Dumbledore said and Snape raised an eyebrow skeptically while Harry hid a grin.

"I highly doubt that, Albus," Snape drawled.

"Which part?" Dumbledore said, his blue eyes twinkling as usual.

"All of it!" Snape shouted and Harry stifled a chuckle.

"I believe it can be done. You are both very caring people. Let's see how that might be an advantage in the war," Dumbledore said and Snape glared. "Begin as soon as possible. Oh, and, Severus?" he said when the Potions master tried to make a hasty exit. "When you teach Harry Occlumency, start by teaching him the basics. I suppose I was unclear last year. Harry has never been taught anything involving Occlumency."

Harry's eyes widened at the mention of Occlumency. He looked at Dumbledore who was smiling serenely while Snape had closed his eyes. Harry guessed the man had a terrible headache and he had reached the end of his patience.

"Albus," Snape said slowly, "you did not think to tell me this last year?"

"I am old, Severus, and the night had been hard. It slipped my mind in the urgency of Harry needing to be taught," Dumbledore told him and Snape narrowed his eyes at the headmaster.

"Explains so much," Snape muttered under his breath. "Are we dismissed, Albus?"

"Yes, that was all. It is up to you two to make this work." Dumbledore gazed at them over his glasses.

"Yes, sir." Harry nodded, not liking the way the headmaster was watching him.

"Excellent. Dismissed." Dumbledore smiled.

"Come on, Potter," Snape growled, grabbing Harry's wrist and tearing from the office.

"Um, Professor Snape?" Harry said as he was dragged through the school.

"Shut up, Potter," Snape said venomously.

"I'll shut up, sir," Harry said, unaware of the smirk on the spy's face.

"Harry?" he heard Ron and Hermione say together. He looked around and saw them step out of the library.

"Hey, guys," Harry said, still being pulled down the hallway.

"What's going on, mate?" Ron asked.

"Detention for two weeks," Harry said immediately.

"Why?" Hermione asked as she and Ron followed Harry and Snape.

"Remember when Snape had me redo the Polyjuice Potion?" They nodded. "I blew up the classroom," he said with a grin.

Snape was secretly impressed. Harry was acting like a complete Slytherin. He would've believed the lie had he not been in on the secret. Soon they reached Snape's quarters and he whispered the password. The door opened and he dragged Harry inside.

"See you later," Harry called out just before the door shut.

Harry gazed around and fell in love almost immediately with the rooms. They were done in dark blues and greens and reds. There was a sofa adjacent to the large stone fireplace with a loveseat directly across from it. A recliner sat adjacent to both sofas and across from the fireplace. There was a small coffee table in the middle of the makeshift circle.

A rug of different shades of green fit the floor around the sitting area. He looked up and found himself looking through a door which clearly led to the kitchen. Even from where he stood, Harry knew the room was spotless like the rest of the quarters. He took notice of four other doors. He assumed one was the bedroom and one the bathroom, but he wondered what the other two were.

"As I'm sure even you can notice, these are my personal quarters," Snape said and Harry rolled his eyes.

Obviously, he said silently.

"We will do all our work here unless we have to change it for some reason," Snape told him and Harry nodded. "Do not believe that anything in our current relationship will change just because we are being forced to work together."

"Wouldn't dream of it, sir," Harry said innocently but there was a gleam in his green eyes.

Snape narrowed his eyes at the Gryffindor again. "All right. Now, that story you told your friends was downright Slytherin," he said and Harry raised an amused eyebrow.

"A compliment? From Professor Snape? To me, Harry Potter? Hold on, I must owl the Daily Prophet," Harry said with a grin. Snape scowled to hide his own amusement. The boy had definitely become more outspoken since his godfather's murder.

"Don't let it get to you, Potter. I don't hand them out often or happily," Snape said.

"So I've heard." Harry nodded, smiling.

The boy has really grown up, it seems, Snape thought and then shook himself. Where had that thought come from? The death of the mutt had given the boy more maturity and had become much more full of life despite all he had seen and would face in the, unfortunately, near future. Harry could still be childish, especially with his friends, but Snape found it endearing that a boy who had seen more than he should have could act like an adult but a child as well.

"Now, your story gives us time to plan meetings and cover stories and the other necessities," Snape said.

Harry nodded again, completely serious now. "Will I be able to tell Ron and Hermione what's going on?" he wondered.

"I see no problem with it as long as they keep quiet. We cannot risk the wrong people finding out we are working together to end Voldemort," Snape told him and looked at Harry who was staring at him with a shocked expression. "What?" he snapped.

"You said 'Voldemort'," Harry said slowly.

"Do you have a point, Potter?" Snape said impatiently.

"I've never heard you call him 'Voldemort', sir. I've only heard you call him the 'Dark Lord'. I didn't think you'd say his name since you used to be a Death Eater and you have to pretend," Harry said, watching the Potions master.

"Professor Dumbledore helped me break the habit," Snape told him.

Harry smiled. "Good."

Snape looked at him curiously but didn't comment. "Now, there will be many things to work on. Occlumency, dueling, research, new spells, and the list goes on. We will have to make a schedule that works with our current schedules."

"I have Quidditch practice three times a week. I'm captain, so I have to be there," Harry said, watching as Snape sat on the sofa, pulling parchment, ink, and a quill towards him.

"Sit," Snape ordered and Harry quickly sat in the recliner. "When do you have Quidditch?" he asked.

Harry blinked. "Huh?"

Snape rolled his eyes and pinched the bridge of his nose. "Quidditch, boy. When do you have practice?" he snapped angrily.

"Oh," Harry said. "Evenings after dinner. Tuesdays, Thursdays, and Sundays."

Snape wrote on his parchment. "Do you have any other activities after school?"

"No, just homework and hanging with my friends." Harry shook his head.

"I will need time for marking," Snape said, writing more. "We will have one or two free days."

"Sir, can Sunday be a free day?" Harry asked cautiously. "It's just, Sunday is usually my busiest day. I've got Quidditch and I'm usually doing homework or trying to figure out the other Horcruxes with Ron and Hermione," he explained.

"Yes. I do much of my marking on Sunday. Sometimes I will have to mark during our meetings however." Snape nodded.

"Really? I thought you always got your marking done right away." Harry grinned.

"I have no trouble seeing you leave your work for last minute." Snape smirked.

Harry glared at him. "At least I do the work."

"It is not a matter of if you do it or not, it's the effort and content. Both of which you lack miserably," Snape said.

"It's not my fault I'm bad at Potions. It's hard to do well with Malfoy sabotaging my potion and you constantly yelling at me," Harry said angrily.

"Do try not to blame your incompetence on others," Snape said offhandedly, writing on the parchment again.

"You are such a git," Harry said, standing up.

"And you're a child. Sit down," Snape said.

"Sod off, Snape," Harry said and left, slamming the door.

Harry stalked into the Gryffindor common room and threw himself into his usual chair, not taking notice of Ron and Hermione in their usual spots.

"Harry?" Hermione said after a glance at Ron.

Harry didn't look at her but continued staring into the dying fire. "What?"

"What happened?" Hermione asked.

"Yeah, mate. Shouldn't you be in detention with Snape?" Ron said.

"There was never detention. I didn't blow up the classroom," Harry said. "I didn't know if I could tell you the truth so I had to lie."

"Truth?" Hermione and Ron frowned. "What truth?"

"I'm working with Professor Snape. Dumbledore wants us to work together to try and end the war," Harry told them and they both smiled, Ron more reluctantly.

"You must be happy about that." Hermione smiled.

"When he's not being a complete git," Harry said and Hermione chuckled.

It had been in his fourth year that Harry became positive he was gay. He had liked Cho Chang but when she said no to going to the Yule Ball, it hadn't hurt as much as he thought it would. When they had kissed the previous year, he hadn't felt anything. He hadn't liked the kiss at all. He'd known then that he was gay for sure. He knew when a girl was pretty but he wasn't attracted to them like he was to men.

He had told Ron and Hermione he was gay after his kiss with Cho. Hermione, as usual, reacted like she had known all along. Ron had been shocked but had accepted it easily as his brother Charlie was gay too. He had been ecstatic that his friends had accepted him even though he had been pretty sure they would. He had found himself slightly attracted to some of the boys around the school but hadn't had any relationships, nor found anyone he really wanted to be with. He didn't want a quick fling. He wanted a real relationship, one that could possibly go further.

"How will you be working together?" Hermione asked.

"Not sure yet. He was making a schedule when I left. We're going to be doing Occlumency again along with a bunch of other things," Harry told them.

"Why did you leave?" Ron asked.

"He was being a git," Harry said.

"What happened?" Ron asked.

"We started fighting about Potions. He told me not to blame it on others that I'm bad at Potions. I called him a git, he called me a child, and I left after telling him off," Harry said simply.

"Oh, Harry." Hermione sighed, sounding amused.

Harry frowned at her. "What?"

She just shook her head and returned to the book in her lap. Harry looked at Ron in confusion but he just shrugged.

Snape stared at the door as it shut. He shook his head. There was no way this arrangement would work. He and Potter had too much of a history. It just wouldn't work and the headmaster knew it; he just wouldn't admit it. He was too caught up in his little fantasy of Severus Snape and Harry Potter becoming the best of friends.

He groaned as his thoughts stuck to Harry-bloody-Potter. He couldn't stand the boy and it made it worse when the brat constantly occupied his thoughts, being the ever present nuisance he was. Why Dumbledore couldn't see that the two loathed each other too much to change was beyond him and he wasn't about to try figure it out. It would just cause him damage.

Leaning his head back and breathing heavily in an attempt to control his anger, Snape glared at the door when someone knocked. He sincerely hoped, for the visitor's sake, that it was important. Putting away his anger the best he could, he called, "Enter."

The door opened and Minerva McGonagall walked in, looking stern. He raised an eyebrow at the witch. "Don't you look at me like that, Severus Snape," she snapped, causing his eyebrow to jump higher.

"Do you require something, Minerva, or do you simply wish to yell at me?" He crossed his arms.

"You are to be working with Potter," she said, her tone making it a statement and not a question.

"Yes." He nodded.

"You care for him," she said in the same tone.

"Have you hit your head, woman? I loathe him or has that suddenly escaped your intelligence?" Snape said scathingly.

"You listen to me, Severus Snape. There is nothing for you to hate in that boy. I understand wanting to protect him as we are in a war and because of your position, but you do not have to be this cruel," McGonagall told him.

"I do not want to protect him, Minerva. Well, maybe I do, simply to see him destroy the Dark Lord. However, I do not care about him and I do not wish to protect him from anything but himself as he is so incapable of keeping himself alive," Snape said but McGonagall shook her head.

"Regardless, you protect him. Whether because of an oath taken or something else, you still protect him."

"Because I have to. You know this," Snape said.

"In any case, Severus, let go of your hatred. It may do you both some good," she growled and left the room.

Snape once again watched the door slam shut. He sighed, gathered his marking, and retired to his bedroom.

A/N: Okay, there's the first chapter. I hope you liked it. If you did, please leave a review. Thank you! :]