A/N: Nearly every Castle fan in the world wants Castle and Beckett to say 'I Love You' to each other. So therefore I decided to write the several different ways they could say it. This one is sort of set somewhere after 'The Limey'. This will hopefully be a series of one-shots but let's see how we go. Most of all please REVIEW! If you have any ideas, Please let me know! (By the way if there are any spelling or grammatical errors, I am sorry :D)

Chapter 1: Really late at night or really early in the morning.

After a long day at work being the amazing kick-arse cop she is, Katherine Beckett made her way through her apartment. She placed her gun in the drawer next to her king sized bed. She then proceeded to stroll over to her white dresser and placed her mother's necklace and father's watch in the jewellery box her mum brought for her on her 16th birthday. She turned her attention to the clock on the wall. The clock ticking was the only sound that could be heard throughout the apartment. 1:15am. Beckett knew that she would have to be back at the precinct in a couple of hours to finish all the paper work from her most recent case, a young girl was murdered by her father and then dumped into the Hudson River. The case took its toll on everyone, especially on Castle. Castle drew parallels between Alexis and the murder victim. He barley spent any of his week at the precinct and when he was there he didn't sprout a single theory. He just sat there in his chair and was quite barely speaking a word. Beckett also noticed that he didn't bring her a double shot espresso every time he came into the precinct. Maybe he was just distracted. The more she began to think about his behaviour the more she realised that he seemed to be pulling away. He would arrive at the crime scene alone, he would say no to following up leads with Beckett and Beckett noticed how they seemed to be so out of sync. Beckett began to think about the reasons why he was being so distance. It had been nearly five years since they first met. Maybe he was just tired of following her around, solving murders, risking his life. He had a book deal for three Nikki Heat books and he had nearly finished the third book, maybe he was going to leave soon. Maybe he was just being distant in order to find the right way of breaking the news. Beckett then turned her head to the clock once again. 2:19am. Beckett had just laid in her bed for an hour. ONE HOUR! Just thinking about him. Dear God. She knew that there was a connection between them. She knew what she really felt. But she also knew that she was scared. She knew how overwhelming these feelings were. Stop it! Kate knew that if she didn't at least attempt to get some sleep now, she never would. She slid down under the sheets and pulled them over her head. She began to close her eyes, but all she could think of was him, same as every night. She began to toss and turn trying to find the right spot in her massive bed that made her not feel alone. Just as she was about to fall into a deep sleep she heard a knock at the door.

"Urrrrrggggghhhhh" moaned Beckett as she absently grabbed her gun from out of the drawer. There was then another series of knocks at the door. Beckett rolled over and once again saw the clock. 2:57am. This person was about to be dead! Beckett finally placed her feet on the floor and got out of her bed just as another series of knocks were heard echoing through the apartment.

"Why!" mumbled Beckett as she slowing, barley able to open her eyes made her way to the door. Whoever was behind the wooden frame would be face with an angry, sleep deprived Kate Beckett with a gun in her hand that was ready to kill at the pull of the trigger. As she was inches away from the door, another series of knocks once again filled the apartment.

"I'm coming!" screamed Beckett as she was seconds away from opening the door. What does this insane, and about to be murdered human being want? thought Beckett. She opened the door in one swift movement and her mouth made the shape of an O once she saw who it was…

"Castle! What the hell are you doing here?" demanded Beckett finally opening her eyes to full capacity.

"Kate! I know you might be mad at me, but pleeeeaaase don't shoot" said a scared and almost frightened Castle who had flinched as soon as the door opened.

"Considering you are at my apartment at three o'clock in the morning, you better have a damn good excuse or I will shot you." Beckett emphasised the will, to which Castle reacted by pushing the lump that was in his throat down. Castle realised that considering Beckett still had her gun pointing at him it was best just to get on with it.

"I love you." These were the only words that came out of his mouth. It was either really late at night or really early in the morning depending which way you look at it and he knew that this probably wasn't the time or place but her needed to say it now.

Beckett was frozen. She stood there; gun is outstretched about to shot. The man that she now knows that she is in love with is standing their telling he loves her. However Beckett is still frozen and is struggling to form words. "W-What"

"I love you. And I would have rather said it when you weren't holding a gun at me" Castle felt a smirk forming on his face. The woman he had loved for nearly over a year now was standing there. She had no make-up on, was wearing an oversized NYPD sweatshirt with matching pants and he still thought she was the most beautiful person he had ever seen in the entire world. He put his heart on the line for her. He thought that she felt the same way, but considering she just stood there, still holding the gun, not moving she obviously didn't feel the same way. Castle was about to leave when he felt a hand grab his. He turned his head back around and saw that Beckett was holding his hand with a smile on her face.

"Rick" Beckett took a breath and continued. "I love you too"

Beckett tossed her gun into her apartment, stepped forward and placed a gentle, sweet kiss on his lips. Finally they gave in to all the feeling that had been building up between them and hopefully would never go back.