Authors Note: Hello Everyone! First SPN/HP crossover here! Let me know what you think. It started as a one-shot but that didn't last. The whole thing is written so I should be able to upload pretty regularly. It is HP compatible if you disregard the epilogue and mostly SPN AU. Enjoy!

Chapter 1:

When Castiel got Dean Winchester's call he was in a remote village outside of Nepal. After the apocalypse was averted he decided to do a little sightseeing, starting with Europe and heading east. Castiel could see a man leave his home and give the angel a strange look. He gazed down at the snow covered mountain and then at his trench coat. Maybe he wasn't as inconspicuous as usual. With a shrug he disappeared and found himself outside Dean's favorite bar in Sioux Falls.

After pushing open the door he spotted Dean immediately. The oldest Winchester was slumped at the bar, with three empty shot glasses in front of him and another in his hand.

He moved over to his friend and clapped a hand on his shoulder.

"Hello, Dean. Why did you call?" Castiel asked as he sat down the empty stool next to his friend.

"I haven't seen you in a while, Cas. I think we need a guys night. Sammy's on his way, but he obviously doesn't have angel speed so it will be a little while," Dean slurred before throwing his fourth shot back.

"Why?" was all Castiel asked.

"Because Lisa kicked me out. She couldn't handle my reintroduction into the hunter's life," Dean turned to his friend, while ordering drinks for both of them. "I need to get laid."

"Laid?" Castiel questioned. He was still getting used to all the twentieth century slang.

"Sex, man!" Dean exclaimed.

Castiel felt his cheeks flush. While he was part human, the angel part of himself still wasn't used to Deans lack of modesty. Dean picked up his glass and tapped is against Castiel's, and drank it town. Castiel took the glass tentatively, before sighing and drinking it in one swallow.

He could tell it was going to be a long night.

Sam Winchester pulled up to the bar and hopped out of the car. He had just finished a hunt a couple towns over when he got Dean's call. Sam could tell by the sound of his brothers voice that something was wrong. He walked into the bar, and the sight before him confirmed his suspicions.

Dean was seated at the bar with what appeared to be six empty shot glasses, and Castiel was catching up with four. Sam was ten feet away when he caught the look on Dean's face. Girls, all of this was because of girls. He looked like he was sighting for something, someone, to drown his sorrows in.

Before he made it to the pair Sam decided to make a sweep of the bar. There was a group of five women playing with the jukebox. Another pair at a table, but they looked much more into each other than their surrounding. Besides that, the bar was full of hairy bikers.

Sam announced his presence by plopping himself down on the barstool next to the other two men.

"Sammy!" Dean called cheerfully as he clapped a hand on his brothers shoulder. "You ready to have some fun! Castiel isn't very interesting tonight."

Sam glanced at the angel and saw the grimace on his face. "Dean is insisting I need to get 'laid.'"

Sam let out a loud laugh at the look on Cas's face. Of course Dean would try to push an angel, the most innocent thing he had ever come across, towards sex.

Sam ordered a round of drinks for the three men, and told them the story of the spirit it had taken down. Dean got quite the laugh when he heard that Sam had been forced to have a tea party with the ghost and her dolls.

A few drinks later and Sam realized they had almost gotten Cas drunk. He had also enjoyed watching his brother strike out with every woman in the bar. Dean was sulking, while Cas was trying to balance on two feet of the stool he was sitting on. Sam was about to call it a night when he heard the door open.

Something made all three men spin and watch as a young woman made her way into the seedy bar. Sam raised a brow. Why would a woman like that come in here? Without a doubt she was beautiful. She was short, almost a foot shorter than himself, with long brown curls. He watched as she made her way to an empty booth before throwing what looked like a large textbook on the table.

He heard a wolf whistle besides him. Sam turned to see Dean giving the woman a once over.

"Are you drooling?" Sam asked incredulously.

Dean lifted a hand and wiped his mouth. "No! But I do believe that I need to say hello to that fine pair of legs over there." Before Dean could stand Castiel grabbed his arm.

Sam watched as Castiel practically studied the woman, without loosening his grip on Dean's arm. There was no way he wasn't going to leave a bruise.

"What's your problem, Cas?" Dean screeched as he pulled his arm out of the angels grasp.

"You are not to touch her, or I will end you," Cas spoke lowly. Dean and Sam raised a collective brow. Neither of them could remember seeing Castiel this worked up.

"You want to tell me why, angel breath?" Dean hissed.

"Because I think I might be in love with her," Cas whispered before standing and making his way over to the table.

"Did he say in love?" Sam asked his brother, who shrugged. Without another word both brothers turned and watched as Castiel approached the woman.

Hermione Granger didn't know why she was here. She was working a job in the area, when she started to feel hungry. She had forgotten her car in the city, so she went on foot. For some reason she decided not to enter the first two bars she found. Something was telling her to keep going. She found this bar and it felt right.

She took one step in, and wished she had kept walking. She had never seen so many hairy and testosterone fueled men in one room before. Besides the three men who looked adequately acceptable, the place was crawling with bikers.

However, she had already entered and she wasn't the type to turn tail and run. With a deep breath she lifted her chin and made her way to a secluded table.

After her night she felt like she deserved a beer and some light reading. She pulled a heavy tome out of her bag and placed it on the table with a loud bang. A waitress made her rounds, and Hermione was able to order her drink, before settling in to read.

Out of the corner of her eye she could see a scuffle happening at the bar, and Hermione glanced up through her lashes to see the shorter of the three men start towards her. He seemed lost in thought, so Hermione had the opportunity to size him up. He wasn't short, but looked it compared to the other two men. He was wearing a white button down shirt, a loosely done black tie and trench coat. Hermione thought he looked like an accountant, but something about him spoke to her and told her to be careful; because he was powerful.

Hermione averted her eyes before he reached the table, and feigned innocence. She watched as he reached her table and was expecting a line or a polite greeting, but instead he just slid into the seat across from her.

Hermione let her gaze travel up form her book and she locked her eyes with him. She was taken aback first by the gorgeous blue, but then by the sheer intensity of his gaze. She could liken it to being x-rayed and she was half temped to cover herself before he saw her in her skivvies.

"Don't worry, It's nothing like that," he told her in a deep voice. It made her spine tingle in the best way.

"Nothing like what?" she asked him just as the waitress dropped off her beer.

"I'm not looking at anything I shouldn't. I'm just trying to understand you," he replied, as he continued to watch her with those piercing eyes.

"Wait a tick. Are you reading my thoughts?" Hermione hissed as she quickly checked her mental barriers.

"My name is Castiel," the aforementioned Castiel said as he extended his hand.

Hermione didn't shake it, though. She was busy sizing up the man across from her. Every magical cell in her body was telling her that he was the most dangerous creature she had ever met. The largest part of her, however, was so intrigued by him. Something was drawing her in. She felt like there was something inside her that wanted to be as close to him as possible. Hermione decided to ignore the fact that he read her mind and refused to tell her why, and shook his hand.

"I'm Hermione Granger," she said softly. Hermione nearly gasped when she felt him squeeze her hand just slightly.

They sat in silence for a moment, and he kept looking at her with that damn stare.

"Mind introducing us to your new friend, Cas?" a voice said to her left. She turned and saw his two friends standing there, each holding two shots of what looked like whiskey, or bourbon.

"Do you not remember what I told you Dean?" Castiel told his friend in what Hermione swore was a threatening tone. She watched as he slid out of the booth and placed himself nose to nose against the other man.

"Cas, it's all right. He's not going to try anything funny," the taller man said, trying to get in between the two friends.

"Why don't you just sit with me and introduce me to your friends?" Hermione said from her seat at the booth. Without a word Castiel slid into the booth next to her, and Hermione had to resist the urge to place a hand on his knee.

With a smile at the man besides her she raised her gaze to meet the bewildered gaze of the other two men. With her eyes she motioned for them to sit, which they did without question.

"My name's Hermione, and you are?" she asked as she grabbed one of the glasses and sniffed it. Whiskey, thank Merlin. When the two men continued to gawk at her she merely shrugged and downed the liquor. "Well, you three are a talkative bunch."

The tallest man seemed to shake himself from his stupor and extended his hand. "Sorry, uh, I'm Sam and this is my brother Dean. Sorry about him," he said with a thumb thrust at his brother. "He is trashed right now."

Dean, on the other hand, had taken up ogling her. She was about to give him a swift smack when he yelped.

"Dammit Cas, did you kick me?" Dean screeched. Hermione looked towards Castiel and saw him glaring at his friend. The look was the very definition of 'if looks could kill.'

"What did I tell you, Dean? Don't doubt me!" Cas said lowly. Hermione felt her lungs constrict before the lamp that sat on their table exploded.

"Okay, uh, sorry, they have little fights sometimes," Sam told her as he pushed the whiskey towards his brother.

Hermione nodded her head but remained silent. She felt like she was dropped into the center of a cock fight. Hermione snickered at the double entendre.

"I don't understand your joke," Castiel said beside her.

Hermione turned her head sharply, "Are you reading my mind again?"

Castiel shrugged, "It just happens."

Hermione sighed and motioned to the bartender for another round. "You must be very powerful if you can read my mind," she told him with a smile.

Dean was rubbing his shin and looking at her with a dumb look. Hermione figured he probably sported that look a lot. "How are you so cool with this?" he asked her.

"You would be surprised about what doesn't surprise me," she said with a wink as the waitress dropped off their drinks.

"So what are you three doing here?" Hermione asked once everyone had a glass in hand.

"Work," all three said in unison. "What about you?" Sam asked her in return.

"Same, so what is it you do?" she questioned back. Hermione felt the man next to her shift, and she swore she felt him brush her leg. Hermione couldn't tell if it was just her imagination or if he seemed nervous.

"That's hard to explain," Sam told her quietly.

Hermione opened her mouth to speak but nothing came out. She was not new to awkward conversations, but this took the cake. With every passing moment she felt her magic increase. Her body was telling her something. She realized that any of these men could kill her. Hermione felt her heart rate increase. She hadn't felt fear like this in a while.

Her flight or fight instincts were going haywire. Just as her magic was starting to manifest itself she felt a wave of calm wash over her. The sudden clarity made her head spin, and she felt her vision fade to black.