My friend gave me this idea and I haven't been able to stop thinking about it. There are probably others similar to this but I hope you'll give it a chance.

Kate Beckett is an award winning writing who has to follow around the childish detective, Rick Castle, while doing research for her upcoming book. There jobs may be swapped but there personalities will be as close to canon as possible.

My other time travel fic is still coming but it's going to be put on hold for a bit while I write this.

Disclaimer: I don't own Castle or the characters.


Katherine Beckett was all about research and that's why she's always thought her novels had been so successful. While so far she'd only written science fiction novels, she now wanted to try her hand at writing mystery ones. She'd always loved a good mystery, until her mother died that is, but now her mother's murder had finally been solved and she was ready to move on and write what she truly loved to write. She'd been hiding in the fantasy worlds she'd created in her previous novels but now she wanted to get on with her life and writing mystery novels is how she wanted to do it.

Research is the reason she'd originally gone to the New York City morgue and where she'd first met Lanie Parish, who is a medical examiner. She'd become friends with Lanie after she'd gone there with questions about dead bodies for her most recent novel. That novel had recently been published and she'd gone back with more questions, but this time, they were more questions to do with the actual solving of the crime as opposed to dead bodies.

"Why don't you ask an actual cop these questions?" asked Lanie, after Beckett had asked yet another murder related questions. Lanie could tell her everything there was to know about dead bodies but when it came to evidence and motive, Lanie wasn't the person to ask.

"Because I don't know any cops," replied Beckett. All her previous research about crime solving and the legal system had been done online but she had considered finding someone to talk to that would help her get the facts right in her upcoming book.

"I know a few, I could easily set you up with one," replied Lanie, not just talking about introducing Beckett to some of her cop friends to do book research.

Beckett saw the look in her friend's eye and replied, "Lanie, it's strictly business, I'm not looking for a relationship right now and I really have to focus on getting my next book written." Her publisher was calling her everyday to see how she was going with her new book since she'd killed off her last character and truth be told, her writing was going nowhere. She hoped that doing more research would inspire her to write more and get the book written by the publisher's deadline.

"Who said anything about a relationship?" asked Lanie, laughing at the look Beckett shot her after she'd said that.

"You're impossible," replied Beckett but joined in with Lanie's laughing.

Lanie did set her up, but not in that way. She'd been talking to Captain Montgomery from the 12th Precinct and he'd agreed to let her shadow one of his detectives, saying it would be good publicity for the NYPD. She was on her way to the precinct now, to meet the detective who she'd be shadowing, and apparently he was the best homicide detective the precinct had to offer.

XXX

Detective Richard Castle was bored. He'd been sitting at his desk for the past hour doing paperwork and the boredom was already getting to him, he hoped they'd get a good case soon. Giving up on paperwork, he got out his phone and started playing games on it, hoping the captain wouldn't notice.

The elevator dinged as he looked up and his breath caught in his throat as he took in the sight of the woman who had just stepped off it. She was undoubtedly one of the most attractive woman he'd ever seen, but not only that, he recognized her as the famous novelist, Katherine Beckett.

His eyes followed her as she made her way across the bullpen. Boredom forgotten, he quickly stood and went to intercept her, wanting to meet the award winning writer.

"Can I help you?" he asked, putting on his best smile as he stepped in front of her, blocking her way forward.

"I'm here to meet Captain Montgomery," she answered, making eye contact with him but not returning the smile.

"His office is right there," he replied, gesturing to the door behind him and to the right.

"Thanks," Beckett said, going to step around him but he stepped in front of her, blocking her path again.

"Don't I at least get to know the name of the pretty lady who's just entered our precinct?" he asked, eyes roaming up and down her body, the look in his eye making Beckett blush slightly.

She was getting slightly annoyed now though. While she was flattered by his interest, she did have somewhere she needed to be and didn't have time for this. Plus, she could tell he was the kind of person who flirted like this with people often.

"Kate Beckett," she said, now eyeing him warily, wanting to get on with what she'd come here to do.

"Detective Rick Castle," he replied, holding out his hand which she reluctantly shook.

"And what do you do Miss Beckett?" he asked, but before she could reply he spoke again, "wait, let me guess. Well, you're not a cop, I can tell that straight away, not a lawyer either. I would say journalist, judging by the note book you're currently holding but I don't think that that's it either." He paused, acted like he was really thinking about it before he continued, "I know, you're a writer."

The look on her face told him he was right and of course he was, he'd known exactly who she was when she walked in but from the moment she spoke to him, he saw how serious she was and wanted to make things a bit more fun, and he thought teasing her like this was the way to do it.

"Written anything I may have read?" asked Castle, when Beckett hadn't responded. He had read all her books actually and her most recent series, The Storm Series, are his favourite books. He's a huge sci-fi fan, although he usually keeps that to himself. He loves reading and watching all things sci-fi, his favourite TV series being the short lived series, Firefly,

"Probably not," Beckett replied, wondering how he knew what she did but she also wanted this conversation to end so she continued, "and now if you'll excuse me, I need to speak with your Captain."

He let her go then, saying he hoped to see her around again. She hoped she didn't have to see him because while she'd admit that he was handsome, she was a no nonsense kind of a person and she could tell he was the complete opposite of that.

After introducing herself to the Captain, he talked to her a bit more about what she wanted. He'd already decided that she was going to be following Castle which made sense because he was the best in the precinct. He was also the only one likely to say yes to having a civilian follow him around. The Captain hadn't asked him yet but he was sure Castle would find it fun to have a shadow. While Castle's methods were sometimes a bit unorthodox, him and his team had the highest closure rate and Montgomery knew Beckett would benefit most from following him.

Beckett explained again that she wanted someone she could follow around for the next few months so she could see firsthand crimes being solved and how the system worked. This would then still give her time to write the draft of her next book which was due in six months, if she found inspiration that is.

The Captain stood then, saying he'd call the detective into the office that she was going to be following.

"Castle, a word," Montgomery called out the open door and Beckett paled. Castle, the man she'd been speaking to before?

She could see through the window as Castle made his way to the office she was in and she inwardly cursed at her luck. She wondered if she could request a change in detective but from what Montgomery had said, Castle would be the only one that she'd be able to follow, at this precinct anyway. And he was the best, maybe she'd misjudged him.

Beckett sat there in silence as the captain explained to Castle what Beckett was there for and that his job would be to help her with any questions she had. Castle was grinning by the time the captain had finished speaking and he turned to Beckett.

"Welcome to the gang," Castle said, grabbing her hand and shaking it enthusiastically. Beckett already knew she was going to regret this decision to do on the job research.


What did you think? And more will be on it's way!