Kate woke up with a major headache the next morning. Instead of dwelling on last night she cursed herself for the major consumption of alcohol and the Castle mistake and went to take a shower. Before she could go to work though she had to go to Remy's to get her car. Thanks to Castle she was going to be late. When she got to work she expected to see Castle sitting there spinning in her chair like a 12 year old, but he wasn't.

"Where's Castle?" she asked Ryan.

"I don't know he hasn't called. Must be late," ryan responded with a shrug.

With that Castle came strolling in with the usual coffee.

"I'm sorry about last night," Kate started, but he cut her off. "It's a new day Beckett, don't worry about it." Even though he said it she could still see the same hurt in his eyes that she saw last night.

"Alright then let's get to work we still have a killer that needs our finding."

As the hours passed Beckett and Castle became exhausted and frustrated. Nothing about this case was normal nor was it easy to find a connection much less solve. The only thing that knocked her out of her thoughts was the movement of Castle getting up to go to the bathroom.

"Sorry Beckett, but all this coffee is running right through me."
"Castle I don't want to hear about your bladder problems," Kate said as she stood up to go to the break room.

Before either of them could go anywhere the phone rang. Esposito picked up the phone and they immediately knew what the phone call was about by the look on his face. After he hung up the phone he turned to them and said, "Another…" Kate cut him off, "Another murder?"

"Yea 5th and Lexington same guy."

When they arrived at the murder Castle slightly gasped at the site. The woman's body was mangled in an awkward way and she had multiple stab and bullet wounds. There was crimson blood all over the carpet that the woman was laying on when she was murdered. The same thought was running through everyone's mind. The killer was starting to get more violent. As if clockwork Lanie held up a piece of paper that Castle assumed was another note from the killer.

Dear Nikki,

I'm starting to get a little worried that you haven't found me. I thought you were the best, but by the looks of it I guess you're not. Time's running out and I have already picked out my next victim. Hope you can find me before I get her.

Sincerely,

You're loving fan

"What does it say?" Esposito blurted out before he could stop himself.

"He has his eyes set on another victim."
"But we just found this body how does he already know who he's going to kill next?"

"He's starting to get impatient. This could be the perfect opportunity for us to catch him. We all know that when a killer starts to get impatient is when he starts to make mistakes. Check everything for fingerprints and any spec of something that could tell us who this guy is."

On the ride back to the precinct Castle could tell Beckett was tense. Her hands were gripping the stirring wheel so tightly her knuckles had turned white.

"Why don't you ever let me drive?"

"What are you talking about Castle?"

"You never let me drive and I don't get why."

"Because I don't trust you're driving."

"I am the best driver. I always win when I play driving games on the wii." The laugh he got from Beckett was exactly what he was looking for.

With a slight chuckle she responded, "Well Castle I think driving on the wii and driving a real car is a little different."

"You have no idea how hard it is to drive a monster truck with a little stirring wheel. It takes so real talent to control those cars."

The teasing went on until they arrived at the precinct. Usually there would have been much more throughout the day, but both of them had been walking on egg shells all day because of the incident that had occurred the night before. Neither one of them knew how to deal with it. Castle knew what he did and said last night was something that he did because he truly loved Beckett, not because he wanted to see what she'd be like in bed.

Beckett on the other hand was completely confused. She had feelings for Castle and that she was sure of, but she wasn't sure what they were. They had been working with each other for more than three years now and something had been brewing between them. A year ago she was going to tell him how she truly felt, but his ex-wife walked up and interrupted everything. Now she had Josh and that seemed to be working out perfectly fine.

"Are you going to get in the elevator or do I have to carry you in here?"

Beckett didn't realize the elevator had arrived and she hadn't gotten in. They rode up to their office with the same thought in mind. What am I going to do? The bell dinged for them to get off and they both stepped off at the same time to walk to their desk.

"You want some coffee?" Castle asked as he walked towards the break room.

"Uh yea sure I'll take some coffee."

Castle brought back the coffee and set it on Kate's desk as she was typing something on her computer.

"What are you doing?"

"Doing something on my computer."

"Oh is it porn? Let me see," Castle said as he leaned over to look at the computer screen.

"Seriously? You think I would be sitting here during a murder investigation looking at porn?"

"Sounds like something I'd do."

"Why don't you go find something shiny to play with while I do actually work," Beckett said as she turned back around to face her computer.

"Fine, but you know you'll miss while I'm gone," Castle sang as he walked away.

Beckett rolled her eyes, "Doubt it," she whispered under her breath.

It had been an hour since Beckett had seen Castle. He was probably getting into something he shouldn't she thought as she stood up to go find him. She had searched the entire place before she went down a deserted hallway. A sudden movement had caught her eye. Trying to figure out what had moved she walked towards a door that was partially opened with her hand on her gun. When she was standing directly in front of the door she reached out her hand to open it when the door flew open and Castle grabbed her arm to pull her into a closet that she didn't even know existed.

"What the…" Castle started kissing Beckett ferociously to get her to stop talking.

"Castle," she moaned as he kissed his way down her neck, "What are you doing?"

"Finishing what we started last night."

"We can't. I'm with Josh."

He noticed that she didn't say she loved Josh just that she was with him. This made him want her even more.

"Beckett we both know that we want this. Stop fighting it. I'm not going to back down like I did last night."

She didn't know why what he just said made her go for it, but she did. She grabbed the nape of his neck and pulled him towards her. With that he kissed her their tongues battling for dominance. Articles of clothing were flying everywhere in a frenzy to get to bare skin. As quickly as it had started it ended. They were lying on the floor when Beckett sat up and started putting her clothes back on.

"What are you doing?" Castle asked

"I shouldn't have done this. Oh my gosh we just had sex and I'm dating Josh," she turned to Castle, "What the hell is wrong with you? You know I'm dating Josh so why the hell did you pull me in here to have sex with you?" she was now yelling at him. He reached out to grab her arm to calm her down, but she pulled away.

"Castle stay away from me."

With that one line Castle's heart tore and Beckett rushed out of the closet looking frazzled with tears streaming down her face.

When Beckett walked through the door to her apartment the one person she didn't want to face right now was standing in the middle of her living room holding flowers.

"Josh what are you doing here?"

"I thought I'd surprise you with some flowers and of course my amazing presence," he said with an adorable smile.

How could she be so stupid? Josh was a great guy and Kate knew she liked him so why had she just had sex with Rick Castle in a closet.

"Are you hungry?" Josh asked.

"Not really I ate something at the precinct. I'm really tired though so I think I'm just going to take a shower and go to bed."

"Alright well you want me to leave?" he asked with a hurt voice. She had seen that hurt face too many times by Castle. She didn't want to be around Josh right now, but she didn't want to be alone.

"It's alright you can stay the night here. Let me just go take a shower then we can go to sleep."

In the shower she tried to scrub away all the pain that she was feeling right now. Not so much as physical pain, but mental. What she was doing to Josh, the woman who were being killed because she couldn't find the killer, and most of all Castle.

As she walked out of the bathroom into her bedroom Josh was lying in bed waiting for her. She climbed in next to him and his arm immediately was draped over her holding so her back was up against his chest. The gesture was sweet, but his arm wasn't the one she wanted. While she lay there trying to fall asleep thoughts of Castle came rushing back to her and tears filled her eyes.