A/N: So this is my first Castle fic. I haven't written much of anything in a while, so my skills are a little rusty. Please review and I love constructive critism! It'll be more AU towards the end.

It Started With A Drink

Castle had invited her to dinner, well drinks actually, but the two ended up sharing an appetizer. He had scotch; she had a few glasses of wine. The bar was only a few blocks, three to be exact, from Castle's apartment, so they hailed a cab from the prescient and decided to walk home when they were done.

Beckett knew Castle had feelings for her, whether she wanted to admit it or not. However, what she couldn't admit was the fact that she had feelings for Castle. These feelings were more than just friendship; it was something deeper, for both of them. She stared at her half empty glass of wine, it was her third. Castle was talking about something, but she wasn't paying much attention, just nodding and saying 'yea' periodically. Her attention then moved to Castle's lips.

She loved his lips, she couldn't really explain why, but she did. As he kept talking she kept imagining the feeling of kissing him, his soft lips pressed against hers. He must have noticed her staring at his lips, because he stopped talking and that seemed to pull her out of her daze.

"Kate." He said slowly leaning in.

She didn't really expect it, but he kissed her. They sat on the barstools and continued kissing for a few minutes, until finally, their lips mouths slowly began to open. She opened her mouth first, she was taking this to the next level and that wasn't something she usually did, but Castle wanted to take it to the next level too, and he followed to suit.

"Kate, let's get out of here." Castle said a bit breathless.

"Ok." She said softly, grapping her purse, finishing off her wine, and grabbing his arm as he paid the check.

They walked arm-in-arm back to his apartment, stopping a few times to pick up where they left off in the bar. Kate couldn't believe what she was doing. She had just drunk three glasses of wine and was walking back to Castle's apartment, arm-in-arm with him, at one in the morning.

Castle couldn't believe what she was doing either, but it just made him want her more. When they arrived back his apartment, he was glad to find his mother was staying the night at Chets and Alexis had 3 days left in her class trip to Europe. He led her upstairs, kissing her the entire time, and slowly beginning to unbutton her blouse.

She didn't care that Castle was unbuttoning her blouse, she didn't care that she was basically drunk, she didn't care that she was about to have sex with Castle, she really just didn't care. She was lonely and had been for a long time, and all of this brought back a rush that she hadn't felt in a very long time.

All of her loneliness caused her to get too caught up in her thoughts to realize that Castle was now on top of her, thrusting into her, and sucking on her neck. When she finally realized what was going on she let out a moan. Something felt right, she didn't know if it was Castle, or the sex, but something felt right.

Kate was actually a bit disappointed when she realized Castle was done. She laid monition less for a few moments trying to catch her breath, while Castle laid next to her doing the same thing.

"That… was… amazing." Castle said breathless.

"Yes it was." She agreed a few seconds later.

They remained motionless for a few more minutes, until finally Castle rolled over to face the wall and drifted to sleep with a smile on his face. Beckett caught all of this out of the corner of her eye.

She had just began to roll out of bed and pick up the pieces of her clothing that were scattered all around the room, when he noticed he noticed she wasn't in bed with him.

"Kate?" He said half asleep and trying to see throughout the dark room.

She waited a few minutes; she didn't know what to say. "Yea?" She finally decided to respond.

"What are you doing?" He asked still barely awake.

"I… I was just leaving." She told him. It was after all, the truth.

"Honey, it's late, stay. I don't want something to happen to you on your way home."

She had to think about what she should do. Her apartment was nearly forty blocks away and it was two in the morning. After thinking about it, she finally decided it was in her best interest to stay. "Only this time Castle."

"Ok baby, now come lay back down with me hot stuff." He said half awake, and half drunk.

She couldn't help but giggle as she climbed back into bed with him and curled up next to him. Something felt right. Castle felt right.

Kate Beckett, the usually well put together NYPD decetive woke up the next morning to the smell of bacon and coffee coming from downstairs. It took her a few minutes to remember where she was, and what had just happened, but when she did, she knew she had to talk to Castle.

She ventured out of bed, and found Castle's tee shirt from the night before. She knew it would take too long to find her clothes, so she decided this would have to do, for now.

Castle heard her coming down the steps. He somehow knew she wanted to talk. He reached over to one of the cabinets and got out two plates. He put scrambled eggs, toast, and bacon on both and sat them across from the stove top on the island. He then got out two coffee mugs, but before he could finish pouring the coffee, Beckett was already standing behind him. It startled him a bit, but he knew she was there.

"Well my little sex pot, how was your night?" He asked her as he continued to pour coffee into the second mug.

"Pretty darn good Castle. How was yours?"

"Not bad, I really loved the part where we came back to my apartment and no one was home." He said, causing Kate to giggle.

"Can we talk?" Beckett asked Castle.

"Well, I just got done making breakfast, what a perfect time to talk!" He replied a bit happy about the oppurtunity to sit down and talk to her.

They sat down next to each other at the island and just as Beckett began eating, Castle started the conversation, "so, since I think it's unanimous that we both had tons of fun last night, what are you doing tomorrow night?"

"Castle…" Beckett began.

"No, I want to take you on a real date. Dinner and a movie maybe, or dancing, or a carriage ride through the park, whatever you want."

"Castle… I don't, I don't know…" She began once again.

"Dinner and a movie? Simple, classic, yet fun." Castle was, well, being Castle.

"Fine, dinner and a movie, but can we not talk about this to the boys?" Kate asked, she didn't want people to know she got drunk and slept with Castle.

"Wouldn't dream about talking about it." Castle reassured her.

"Good, now, I've got to get to work." Beckett said getting up and kissing Castle.

"You, didn't finish your breakfast, you're in nothing but my shirt, Kate?" He rambled on as she walked about the door, flipping her handbag over her shoulder.

"See you at work Castle." She said walking out the door.