"Look castle, I'll be fine. I'm just going to check on a crime scene, and I'll be back in like two hours tops." Kate says kissing her husband grabbing her black briefcase and walking out of their loft apartment. The kids had already been dropped off at school and Kate really just needed to get out of the house. She did not lie to Castle. She really was going to check on a crime scene but also just getting herself out of the house. She felt cooped up like she had cabin fever. Castle had been trying to keep her around as close to him as possible in case she went into labor. Kate was just about to hit week 38 and Castle, being the dad he is, was scared she'd go into labor out in the field. Kate knew though he was right, she could go into labor at any time, but she was not going to let him stop her from working and getting out of the house.

Getting in her car She makes her way towards the crime scene glancing back every few minutes to make sure the car seat was in her car. To say Kate and Castle were ready for this baby was an understatement. All three cars had their car seats installed and triple checked by the fire department on Kate's insistence. The nursery was painted and ready to go and the labor hospital bag was packed to the brim ready for when Kate let out her first scream of a contraction or when she told Castle her water broke. Kate arrives at the crime scene and should not have been alone. Ryan was going to meet Kate there, and he did but was soon called away to go look at something in the morgue. Searching for that something to break the case is what Kate was looking for. They needed one more little piece of evidence, something to connect the man that they knew was the killing to this crime. The crime scene had been a Fedex print shop and Kate had felt she'd looked over it all a million times. They'd interviewed all the employes, and one fit the bill they just couldn't find any evidence to bring the case to justice.

Kate's squatting the best she can over where the body had been just two days ago searching for a clue when a sharp pain hits her. She knew, that moment she was having contractions, and she knew, if this got worse quick Castle would kill her. She felt fine for now though and decided just to push it off a few more minutes, hoping to find that clue. Well, it did not work. Kate had pushed it off about three sets of a few more minutes later having about two contractions the whole time. She knows she has to call Castle; she's not ready for his lecture, but she has to call him. Pulling out her phone she dials his number holding the ringing phone up to her ear.

"Hi, babe." Castle smiles into the phone as he waits for an answer.

"Find any clues?"

"Actually no, the only thing I found here was the fact that this crime scene sent me into labor."

"Say what?" Castle asks shocked wanting to make sure he heard her right.

"Labor Castle, I'm in labor." Her voice is serious as she can feel Castle start moving on the other end trying to remember the plan they had set up.

"Oh uh, ok, yeah, I uh." Castle is mumbling before he finally gets his words out.

"Oh, AH! You're in labor."

"I am Castle."

"Ok then, um, where are you? I'll get a cab and come get you so we can take your car." He says running towards the door and grabbing the labor bag. He uses the house phone and calls down to the lobby to get him a cab so that it can hopefully be ready for when he gets downstairs.

"54th and lex." She tells him quiet as another on traction hits her.

"Just breath ok? And call for backup or something, they can use their sirens to get us there faster."

"Not how that works Castle." She groans trying to do as Castle told her and breath.

"But I know a guy!" He whines softly.

"No, Castle."

"Would you just hurry up before I have this baby without you?" She protests hearing the house phone click off, and Castle unlock the front door.

"I'm going to hang up ok? So you can call Martha." Kate says exhaling slowly trying to keep the pain at bay. She hangs up, and moments later Castle is in a cab his phone still pressed to his ear. He's just called his mother and told her what was going on. The plan was, Martha was going to then Call Pi and Alexis so they could then help wrangle all the kids. Martha loved her grandkids very much but sometimes all four of them can be a handful.

It takes Castle about 15 minutes to reach Kate, and he finds her inside sitting on the floor her head down and her back arched towards the floor. He helps her up carefully and puts his arm around her so he can slowly and carefully help Kate out to her C-max. He gets her in the car and runs back inside to grab his wife's bag and lock up the crime scene. He's rushing back to the car when he gets to his door and see's Dax in the drivers seat.

"Outta my seat bucko, you know you have to sit in the back!" Castle sighs and points to the back seat as Dax looks up and then jumps into the back seat. Getting in he starts her car up and checks for cars before pulling out onto the street. It's rare that Castle is seen Driving Kate's car. He does not complain though because its a hybrid and he's saving money. The two are on the way to the hospital Castle keeping a close eye on Kate coaching her to breathe the whole way. 10 minutes and two contractions later the couple makes it to the hospital and Castle parks in the parking garage. He gets out and slings the bag over his shoulder waiting for Dax to climb over the seat before he closes his door and walks around to help Kate out. On the way, Castle had called Missy and explained to her that Kate was in labor and Missy said she'd be there to meet them at the hospital soon. It does not take them long before they are inside and Castle has Kate in a wheelchair and are taking the elevator up to the Labor and Delivery floor. She's checked in and finally is in a room and in bed. Kate is happy to be laying in the bed rather than sitting up in the car or in that uncomfortable wheelchair. Moments later a nurse comes in and hooks Kate up to the same monitors they had used for her nonstress test. Missy comes in a few minutes after that and checks Kate.

"Wow, pretty far along, you are already at 7 centimeters." Missy smiles having just checked Kate and is slipping her gloves off and into the trash.

"I'm going to call the surgical team and let them know that you've gone into labor, that way they can be ready at a moments notice." She smiles writing a few things on Kate's chart before putting it back down. Kate had planned on getting an Epidural this time around but since she was so far along and passed that point she had to tough it out. Nothing Castle knew she couldn't do. Kate is checked a two more times before Missy tells her she's fully dilated and her water has officially broken. It's go time. Kate had wanted to call Martha and ask her to bring the kids so she could see them before the baby came but this went so quickly she did not have time.

"Ok, Kate, before you start pushing, I want you to know that once we get him out we will put him on your chest but only for a few minutes, The surgeon will want to check his back over real quick so they can get a plan of attack. if all goes to plan, then you get at least a few hours to hold him and look him over before he goes into surgery." Missy explains smiling softly as she watches Castle help prop Kate's legs up.

"You ready Kate?" Missy asks as a sweaty Kate nods.

"I've been ready for this for weeks; this kid hate's me; I've peed way to much for my own good." Kate chuckles taking Castle's hand and squeezing it to death. She's done this a million times, so she knows what she's doing.

"Ok, Kate, big breath in and push."

"1…2…3…" Missy instructs as Kate bores down and pushes with all the fight she had in her.

"4….Good job….6….7…Keep going…9…10." Missy counts watching as Kate lets out her breath feeling quite out of breath by now. Castle has now let go with his other hand and is wiping the sweat off his wife's brow.

"Good job babe, just a few more of those and he will be out into this world." Castle smiles softly as Kate starts for another push. It takes about five more pushes before screams are heard throughout the room. Arejay was out and on Kate's chest as Castle is cutting the cord.

Kate's crying as she looks at the little infant in front of her. He's covered in yucky stuff, but that does not stop her from kissing his soft small little head.

"Hey, there buddy." Castle smiles seeing the mottle baby laying sideways on his mom. He can see the lesion and it's quite big. He's not scared like he thought he would be as he leans down and kisses his wife.

"We did it baby; we have another baby."

"We did, and I couldn't be happier." Kate smiles kissing her husband back. The surgeon is in the room moments later and is checking Arejay out seeing from the outside what they will have to go. He's looking pretty good which gives the couple about an hour and a half to spend with him before the surgery. Castle was gushing over him as he send a picture to his mom of the small little newborn.

Leaving the kids with Alexis and Pi, Martha rushes over to the hospital so can see the newest Castle before he heads off to surgery. Knocking on the door Martha steps in a bright smile on her face as she walks over to the couple holding the sleeping baby.

"He's beautiful Kate," Martha says having brought Jim with her as a surprise. He gingerly walks over and smiles too as Kate looks up surprised to see her dad.

"Oh, Katie!" The two are mesmerized at the little child resting in Kate's arms. She'd been instructed how to hold him, so she does not hurt his back and his lesion.

"Whats his name?" Jim asks his eyes are still on his little grandson.

"Arejay, Arejay Leith." Castle smiles softly kissing Kate's head. They know they don't have much longer with him Castle wants to hold him, but he also does not want to take the time away from Kate.

"Here Castle, you hold him." Kate smiles carefully lift in up the baby into Castle's arms. She knew he wanted some time as well and did not want to deprive him of those first few moments. Castle is holding Arejay carefully as he kisses the little boys head. He's so happy right now, his son who had to almost fight to stay alive was in his arms right now. It was perfect. He had everything he could ever want standing right in front of him.

A/N: YAY finally! Welcome to the world Arejay Leith. Thanks again for all the reviews. it really means the world to me!