Richard Castle was sitting at home with daughter watching firefly when he heard a knock on the door. He paused the movie and went to answer the door he looked through the peephole to see Kate Beckett standing there.

" Hi Kate what's up?" Castle asked.

" Hi Castle you left your wallet at the precinct I thought you might need it." Kate said handing it to him.

" Thanks, Would you like to come in?" Castle said.

" Actually can I use your washroom? My daughter has been pushing on my bladder all day." Kate said rubbing her four- month pregnant belly.

" Sure come on in." Castle said letting her in.

She quickly went to the washroom and when she returned Castle and Alexis were sitting on the couch, watching firefly.

" Thanks Castle I'll see you tomorrow." Kate said heading for the door.

" Wait! Would you like to join us? We are having pizza for dinner." Castle said.

" That's sweet Castle but I don't want to impose on your father daughter time." Kate said.

" Detective Beckett stay, I don't mind." Alexis said.

" Alexis how many times do I have to say call me Kate." Kate said smiling at her.

" Sorry Kate, please stay I actually have a gift for you." Alexis said.

"That's sweet Alexis you didn't have to get me anything." Kate said coming to sit on the chair beside the couch.

" I wanted to I'll go get it." Alexis said going up stairs.

" Kate how are you feeling?" Castle asked he patted the seat next to him. Kate looked at him he was so caring and sweet. She knew she had feelings for him she loved him. It was simple she loved him but she knew he didn't feel the same how could he love her when she was pregnant with another mans child. She put those thoughts to the back of her head and went over next to him.

" I'm great Castle I can feel her moving around. It was funny Espo tried to feel but he couldn't she isn't strong enough yet only I can feel her. That's a great feeling." Kate said smiling.

" That's great, I'm sure Esposito will be able to feel her soon." Castle said.

Alexis came down the stairs with a gift bag she handed it to Kate and sat down in the chair next to the couch. Kate opened up the bag inside was a beautiful pink teddy bear with a purple bow around it's neck.

" Alexis it's so cute! Thank you." Kate said giving her a hug.

" Your welcome, it was mine when I was a baby." Alexis said.

" Lex I can't take this it's yours." Kate said.

" No please take it I want her to have it." Alexis said.

" Ok thank you Lex I love it!" Kate said giving her another hug.

" You girls want pizza now?" Castle asked.

" Yes I'm starving!" Kate said.

" Ok I'll go order it." Castle said getting up.

Castle ordered their pizzas and then joined them on the couch for more Firefly. After they ate their pizzas Alexis headed up stairs to study. Castle and Kate finished a few more episodes before Castle turned the tv off and turned to Kate.

" Have you spoken to your dad lately?" Castle asked taking her hand.

" Uh the last time I saw him was the day I told him I was pregnant." Kate said.

" How did he take the news?" Castle asked tracing circles just above her knuckles.

" He is so happy to be a grandpa but he was very mad about Josh." Kate said.

" What did he say?" Castle asked.

" He said he wanted to kill Josh for leaving me alone." Kate said.

" You're not alone." Castle said making her look at him.

" I know." Kate said squeezing his hand.

Their eyes met they stared at each other for the longest time before Kate leaned forward and kissed him. She out her hands on his neck and he wrapped his arms around her back. After a minute they pulled apart.

" I'm sorry." Kate said looking at the ground.

" Kate why did you do that?" Castle asked.

" What?" Kate asked.

" Why did you kiss me?" Castle asked.

Kate took a deep breath and decided that it was now or never.

" Because I love you." Kate said.

" What?" Castle asked.

" I love you." Kate said.

" You love me?" Castle asked.

" Yes I love you and I understand that you don't want to be with me. Who would want to be with someone who is pregnant with another mans child…"

" Kate! Stop!" Castle yelled.

Kate stopped rambling and look at Castle.

" I never said I didn't want to be with you. You didn't give me time to respond, I love you too so much." Castle said as he pulled her towards him for a kiss she wrapped her arms around his neck while he placed his hands on her back they broke apart after a minute.

" You really love me?" Kate asked needing to be sure.

" Yes Kate I love you." Castle said.

" You want a relationship with me?" Kate asked.

" Yes I would love to be in a relationship with you." Castle said taking her hand in his.

" Are you sure? Because I understand if don't, I am pregnant I understand you don't want to get involved." Kate said.

" Kate I'm 100% sure. I love you and I love her from the moment I saw her on the ultrasound." Castle said placing his hand on her belly.

" I love you." Kate said kissing him.

" I love you too." Castle said.

Castle looked over at the clock and saw that it was 10:30.

" Kate it's late, stay here tonight you can have the guest room if you'd like." Castle said.

" I'll stay but can I sleep with you? I've felt so alone lately I just want someone with me." Kate said.

" I would love that, come on." Castle said.

He helped her off the couch and took her to his room. He gave her a t-shirt and sweatpants for her to wear. She got changed in the washroom while he striped down to his boxers and climbed into bed. When she was finished she climbed into bed next to him he wrapped his arms around her and pulled her as close has he could so her belly was touching his side.

" Good-night I love you." Kate said kissing his cheek.

" Good-night I love you too." He said kissing her head. He placed his hand on her stomach and said. " And I love you."