The minute she saw his face her breath hitched. She hadn't seen him in 17 years and everything had changed since then.

"Hey boss you ok?" Esposito asked when he saw her stop suddenly.

"Yea, I'm just preparing myself for another investigation," she said trying to convince not only Esposito, but also herself.

He had been talking to his daughter when he just happened to turn around and see her.

"Beckett?" he asked slightly confused about why exactly he was seeing her.

Her eyes slightly glazed over as he said her name.

"What are you doing here?"

"It's Detective Beckett now and I'm here because there has been a murder and you are a suspect," she replied with a flat tone.

"I have no idea what you're talking about. I'm not involved in any sort of murder. Is this a joke?"

It was Ryan's time to intervene.

"No Mr. Castle this is no joke. We believe that you were involved in the murder of Allison Tisdale. You have the right to remain silent."

As Ryan spouted off Richard Castle's Miranda Rights and cuffed his hands behind his back all Kate Beckett could do was watch. Staring deep into the confused eyes of the man that she thought she would once marry. With all the commotion of the famous author being escorted to a cop car Kate didn't hear the barely audible steps of her best friend and partner, Esposito, walking up beside her.

"Man that guy is a tool. It seemed like he knew you though."

Kate looked to her left to see the curious eyes she was used to seeing. She always tried to keep her personal and work life separate. This was just another one of those times.

"Just some guy I knew when I was younger."

"You know that if you have personal connections you can't be on this case right?" He said as if Kate was new to the job.

"Yea Esposito I know. I haven't talked to the guy in 17 years. I didn't even know he was an author."

That was a lie. Not only did she read every book he had ever written, but she had also read every newspaper he had been in. Not in a stalker way, but in a way that made it seem as if they were still together.

"Alright whatever you say boss. I'll see you at the precinct," he said as he headed to his car.

On the way to the 12th precinct, the place Kate had been working ever since her mother's death, she remembered the last time she had seen Castle.

She had something she wanted to tell Castle and decided she would tell him in person. She could barely contain her excitement on the way to his house. As she arrived she realized his car wasn't the only one there. Luckily she had her own key to his house so she didn't have to knock. When she walked in she unfortunately got a direct view of Castle sitting on the couch with a blond bimbo, also known as Kate's enemy Meredith, on top of him harshly kissing his lips. The only thing that escaped out of Kate's mouth was a quick gasp. That was all it took to catch Ricks attention. He turned his head to see her standing there with tears in her eyes and her hand covering her mouth.

"Kate it's not what it looks like."

"It never is Rick," she said as she turned around to leave.

She had just called him Rick. The only time she ever called him by his first name was when she was really upset with him. Castle quickly got up, throwing Meredith off his lap in the process, to chase Kate. He was too late though. As he got to the door he saw Kate's car pulling out of the driveway in record time. That night Kate had over 30 missed calls and a dozen voicemails of Castle apologizing and telling her that he loved her and Meredith was the one who came onto him. Once he realized that she wasn't going to answer him he knew that they were over, forever.

"Hey Beckett, are you ready to interrogate him?" It was Ryan holding out the file asking her to do something that she never imagined would be happening.

"Yea, ready as I'll ever be," she said taking the file from his hands.

Everything at that moment seemed to move in slow motion; her grabbing the door knob, turning it to show a man she hoped she would never see again, walking to the table where HE sat waiting to speak with her.

"You look great Beckett," he said in a smooth tone that had drawn her to him in the first place.

"Where were you tonight at around," she paused to look at the file, "6 o'clock."

"I don't think anything about you has changed. Although you do look more, grown-up," he said as he quickly glanced at her breasts. Her jaw absentmindedly dropped as her hands quickly flew up to cover her chest.

Not only was Kate shocked, but Ryan and Esposito who were listening to the conversation on the other side of the glass were equally shocked.

Without hesitation he went on to ask, "Do you remember that time on the beach? You seemed so afraid to experiment, but I finally got you to give in. I didn't think I was ever going to get sand out from between my." Beckett's hand flew from her chest to cover his mouth before he could say anything else. Sadly enough she could remember what he was talking about.

"Come on Beckett. It's going to get so boring after awhile if we only have sex in a house. Let's try the beach."

"Castle, I'm not going to have sex on a beach. Who knows how long it will take to get sand out of places it's unwanted."

"Alright if you say so," he whispered as he pressed a kiss to her neck.

Damn, he always knew how to get her to give in. Her hands were suddenly on his shoulders pulling him down on top of her. Luckily for her he was already in swim trunks so it didn't take her long to strip him naked and with a quick pull of a string she was naked along with him. His hands were on her waist holding her in place as he kissed his way from her collarbone to her stomach. She pulled him up before he got any farther so she could look into his eyes and say, "I love you." He looked back at her with his soft eyes and said, "I love you too, Kate." With that he entered her slowly and started to rock back and forth. A slight moan escaped her lips.

"Are you ok, Beckett?" Castle asked with concern. She completely forgot that she was in an investigation room and not on the beach.

"Yes, I'm fine. You never answered my question. Where were you tonight at 6 o'clock?"

"Well I had a book signing tonight and have been there since 5. I have plenty of witnesses to testify to that," he said with a crooked grin.

"Alright then you are free to go. Be careful Mr. Castle, you might hurt someone," Kate said as she passed by him with serious eyes.

When she was out of the room and back at her desk she felt as if she could finally breathe again. That was until Ryan and Esposito came up to her desk to interrogate her.

"Dude, what was that about?" Esposito asked with a grin, "Did you and Richard Castle have a thing."

Before she could respond Ryan piped up, "Yea and what happened on the beach is what I would like to know." They both looked at each other and high fived as they started to laugh.

"As usual guys my life is none of your business. Now don't you have some phone records to be checking or something?"

Much to their dismay they stopped laughing and turned around to go to their desks. Kate's head dropped into her hands which were propped up on her desk hoping that she would now have time to think about what had happened. Unfortunately she was wrong. Footsteps were coming her way and she had a feeling to whom they belonged to.

"That was a nice meeting, Beckett. Definitely not what I expected to happen when I saw you again but it was still nice."

Kate lifted her head, "Well now that we have had our little meeting let's never see each other again."

"As much fun as that sounds I have a feeling that we will be seeing a lot of each other over the next few weeks, maybe even months." He had a sly grin.

A horrified look came across her face, "What are you talking about?"

"Well I've called in a little favor to my friend, the mayor, and it seems as if I will be shadowing you during this case."

Before she could even say a word he started to walk away. All he could hear as he got in the elevator was her yelling his name and as the doors closed he had the biggest grin on his face. It was going to be nice getting to know her again, not to mention the surprise he had at his house was going to change her life forever.

So tell me what you think. Hope you liked it and you'll have to wait and see what Castle's surprise for Beckett is. Muah ha ha (evil laugh). Please review. I want to see what you guys think