A big thanks to everyone who favourited/followed/reviewed and sorry for the delay but I hope you enjoy the final chapter.

See the author notes at the bottom for a possible continuation of this fic.

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

Lanie had been wondering what had been going on with Beckett and Castle these last few days, something was definitely up with them and she wanted to know what. She'd first noticed it at the crime scene when Beckett was gripping Castle's arm tight like she couldn't walk in her shoes. Then again when they were at the morgue, something weird was going on between them and Lanie intended to find out.

So during her lunch break, she went straight to the precinct, directly over to Beckett's desk and before anyone knew what was happening, Lanie was practically dragging Beckett away after saying, "We need to talk."

"What's going on between you and Castle?" Lanie asked, once they'd reached a deserted corridor. Castle had tried to get away, saying he was busy, but Lanie was having none of it, she obviously really wanted to talk to Beckett and Castle wasn't sure he wanted to hear whatever Lanie had to say. Ok, so maybe he did want to hear but he felt like he was invading Beckett's privacy and he didn't like that.

"What do you mean?" asked Castle, pretending not to know what Lanie was talking about, he figured it was what Beckett would do anyway.

"Don't even try that Kate, I know something is going on between the two of you and I'm not leaving until you tell me," replied Lanie, knowing Kate would try to avoid the situation but Lanie wasn't going to let that happen.

Castle just stood there, staring at Lanie, trying to come up with something to tell her that was believable.

Before Castle could come up with anything, Lanie continued, "Don't tell me you finally told him how you feel?"

"Told him how I feel?" The words were out of Castle's mouth before he could stop them.

"Don't deny it now Kate, we all know the truth." Kate really was deep in denial it seemed, everyone knew how she felt, with the exception of Castle that is.

"The truth?" Castle really needed to stop talking.

"Will you stop repeating what I'm saying and tell me what happened? Don't skip any of the juicy details either," replied Lanie, now grinning at who she thought was her best friend.

"Nothing's happened between us…" Castle was cut off when Beckett came flying around the corner of the corridor.

Beckett had been in the break room when Lanie had arrived so when she got back to her desk and Esposito had told her that Lanie had showed up, demanding to speak with her and Castle, in her body, and Lanie had left together, Beckett went into full on panic mode. Who knows what Lanie would say to Castle while thinking she was speaking to her. She had to get to Lanie in time before any of her secrets were revealed.

"Beckett, I'm glad I found you," said Beckett, slightly breathless and trying to come up with some sort of reason why Castle would need Beckett so urgently. "We got some new evidence and the boys need you," she continued, saying the first thing that popped into her mind.

"Castle, can't I just have 5 minutes with Kate? We were having an important discussion," replied Lanie, wanting to know what was really happening between them.

"Can't you two talk about this later?" asked Beckett, getting desperate now.

"Yeah Lanie, I am rather busy," said Castle, knowing that Beckett wouldn't want him hearing whatever Lanie had to say, no matter how much he did want to hear it himself.

"No Kate, where going to talk now, and I will talk whether Castle is here or not," replied Lanie, sick of her friend denying her obvious feelings for the writer, well obvious to everybody except Castle.

"Fine, but whatever you have to say to me, you can say in front of Castle as well," said Castle after seeing that Lanie wasn't going to let him leave easily but also that Beckett would feel more comfortable if she was there too.

Beckett shot him a look and he realised that maybe he should've tried a bit harder to get away and back to work but he couldn't help if he wasn't just a bit curious about what Lanie had to say.

"Are you sure Beckett, because I think you know what I'm going to say?" asked Lanie, confused as to why she'd want Castle there.

And Beckett thought about just grabbing Castle and leaving, despite how her friend would react. But knowing Lanie, she'd probably just shout whatever she had to say after them as they left so that wouldn't stop Castle hearing it anyway. But maybe now was the right time to actually tell Castle how she felt, she had planned to recently anyway so why not now? And who knows, maybe this would be the thing that gets them switched back into their right bodies. She'd run out of reasons why she was hiding her feelings from Castle and maybe this was the perfect way to tell him. She'd chickened out so many times over the past few days so why not finally let him know how she really feels.

"Okay then, if you're sure?" and when Castle in Beckett's body nodded, Lanie continued, speaking directly to Beckett, "If nothing has happened between the two of you, are you ever going to tell him how you feel?"

"Lanie, do you mind giving me and Beckett a minute alone?" asked Beckett, because as much as she loves her friend, she'd rather not have this conversation in front of her. Ideally, she wanted to have this conversation in their own bodies but this would have to do.

Since Lanie had thought Castle was talking, she looked at Beckett's body to check that it was okay for her to leave and Castle nodded.

"If I leave, will you tell him?" asked Lanie, directing her question at Beckett's body so Castle nodded even though he wasn't sure if Beckett would actually say anything or brush him off like she usually did.

"Call me later," were Lanie's parting words and now Beckett and Castle were alone in the corridor.

"What was she talking about?" asked Castle, once they were alone.

"She was talking about something that I've been hiding from you but before I tell you that, there's something else you need to know about first," replied Beckett, her heart beating rapidly about what she was about to tell him.

"I heard you," she continued, when Castle had remained silent, waiting for her to speak.

"Heard me? Heard me when?" asked Castle, confused now about where the conversation was heading.

"That day," Beckett paused, taking a deep breath before she continued, "that day I was shot, I heard you."

"Beckett…?" said Castle, trailing off, not really knowing what to say.

"And I'm sorry I didn't tell you, but I was just so scared and I didn't know if you meant it, or if you still felt the same way and I was completely terrified," she paused then, looking up to meet Castle's (her) eyes and she could see the hurt in his eyes, hurt that she was guilty of putting there, "But I heard you and I'm sorry I didn't tell you earlier."

"What else were you going to tell me?" asked Castle, surprising Beckett.

"I….I just told you that I lied to you and you're not even mad?" replied Beckett, wondering what it meant that he wanted to know. Did he still feel the same?

"No, I am, I just want to know what else you were going to say. Please Beckett, I need to know," replied Castle, he was hurt and yes, he was mad. but if these last few days had shown him anything, it was the fact that Beckett maybe returned his feelings.

Beckett took a deep breath, closing her eyes. This was it, she was going to tell him how she really felt, but could she do it? She opened her eyes, and seeing the look in his eyes she knew that she could.

"I love you," she whispered, now looking away, scared about how he would react.

"Look at me," Castle whispered back, and when she looked back into his (her) eyes, she saw the love shiny in them and she knew that her love was reciprocated.

"I love you too," he said, wishing more than anything that they were back in their own bodies and that he could kiss her the way she deserved to be kissed.

She so wished she could kiss him, but she couldn't, it would just be wrong. Once they were back in their own bodies however, nothing was going to stop her from doing just that.

They went back to work then, both with matching grins on their faces that they couldn't quite hide and they knew that things were going to be okay.

XXX

Beckett slowly opened her eyes and she immediately knew something was different. When she realised what it was, she sat up immediately. She was in the guest bedroom bed which could only mean one thing, she was back. Her hands flew to her face and sure enough, she felt familiar features under her hands. If she was back in her own body then Castle must be back in his. Castle! She quickly got out of bed and made her way downstairs, even if it was just to see if he was okay, she had to see him.

She stopped at the foot of the stairs when she saw the door open on the other side of the room as he stepped into the living room too. She could tell something had changed between them, especially after what had happened earlier and before her brain even registered it, her legs were moving, taking her closer to Castle. He'd stopped too, when he'd seen her, but now he made his way towards her as well.

They stopped when they were in front of each other, neither making the move to close the gap so they were touching.

"We're back," said Castle grinning, eyes roaming up and down Beckett's body.

"Yes we are," replied Beckett, grinning back at Castle as her eyes did the same.

They stood there for a minute, just taking in the sight before them, glad that they were finally in their own bodies. While it had certainly been an interesting and informative few days, there was nothing like being in your own body.

Beckett was the first one to make a move because while they both knew how the other felt, Castle wanted it to be her decision to touch him and he didn't want to rush her.

She reached up, placing her had gently on Castle's cheek.

"Beckett…" Castle trailed off, leaning into her touch, his eyes falling closed.

"Shhh…" said Beckett, reveling in the feeling of Castle's cheek beneath her hand.

Her hand moved then, to the back of his neck where she ran her fingers through the short hair there, she could definitely get used to this.

Castle moved then, hand going around her waist and he stepped forward, bringing his body flush with hers. He then leant down, resting his forehead against hers as her other hand wound around his neck.

"Kate…" he whispered before bringing his lips down on hers and he'd never felt a sensation quite like this, it was even better than their previous kiss and that was saying something.

When a moan escaped Beckett's lips, he pulled her even closer, their tongues now exploring each other's mouths. Beckett pulled away and started kissing along Castle's jaw and then continued down his neck and it was Castle's turn to moan. Her lips eventually made their way back to his lips and he kissed her like he'd never kissed anyone before. This time he wasn't sure who moaned, it could have been both of them, and Castle pulled away, resting his forehead on Beckett's once more.

"It's good to be back," said Castle, moving again to place a quick kiss on Beckett's lips before he pulled back.

"I love you," Beckett replied, almost overwhelmed with the love she could see in Castle's eyes when he looked at her.

"I love you too," replied Castle, smiling before he took her hand in his and led her back to his bedroom.

I'm a bit nervous about the end so let me know what you thought :)

Another thing, someone suggested a scene between Martha and Alexis and Beckett and Castle when they are swapped, would anyone be interested in a one shot of that? Let me know and thanks for reading :)