"We have to go, we have to stop it, it's too soon—it's too soon," Castle says, his voice lined with panic.

"Castle," Kate replies, her voice shaking. "I cannot do this, I cannot, you need to help me—Castle," Kate begs, tears filling her eyes.

Hanna and Nathan sit on the couch with a scared look in their eyes. "Rick, there is something wrong," Kate says through her tears.

Castle's face suddenly changes—he's got to be the strong one. "Mommy is going to be just fine," Castle tells Hanna and Nathan as Castle helps Kate into a chair. "I'm going to grab some of your things," Castle tells her, and then he quickly gives her tear stained face a kiss. "It will be okay Kate," he promises her.

Hanna runs to her mother's side, holding her hand. Kate gives her daughter a small smile. Castle takes Nathan and runs to the master bedroom, throwing Kate's things into duffel bags and eventually throwing in some baby clothes, but a constant thought seems to flood Castle's mind—it's too early, something is wrong.

"Darlings!" Castle hears come from the front door— his mother. He then hears a gasp as come from Martha as Castle goes to meet her with Nathan on his hip.

"Martha, I'm okay," Kate tries.

"She is labor, I need you to watch the kids," Castle tells her quickly as he passes off Nathan to his grandmother.

"What? Oh, honey," Martha says sadly.

"We will call as soon as we can, they need to eat dinner still—I love you Nathan and Hanna," Castle mumbles quickly as he kisses their foreheads.

Kate grabs Castle's arm and leans into him. "I love you two, be good, listen to your grandmother," Kate tries to say as if today were not any different than a book signing or a date night.

"Mommy!" Nathan yells as he reaches towards his mother—realizing that she is leaving.

"Be good," Kate says to him as the Castle closes the door behind her.

In the car, Kate clutches her abdomen and fights back tears. "Something is wrong," she whispers to Castle as he frantically drives.

"Kate, we're almost there," Castle says as dials Espo to tell him that Kate won't be into work today.

A half hour later, Kate was in a considerable amount of pain and the doctor still hasn't come to the room. "This is my fault Castle, I should've slowed down, I should've listened to you, and I should've…," Kate sobs.

Castle then feels bad for all his nagging. Stress could've caused this, but what good does placing blame do now? "Kate, listen to me, you and I are going to be alright. We have an excellent doctor and everything will be alright. Stop trying to blame yourself Kate," Castle says softly.

"I hear we have some babies that are coming early," the doctor says as she comes in with her clip board. It only takes a matter of minutes for the doctor to see that Kate needs an immediate C-section. Kate grabs Castle's hand and squeezes hard.

"From what I can tell, one of the twins is in distress, causing you to go into pre-mature labor. We don't really know what causes this, but we are going to do everything we can," the doctor promises Kate and Rick.

"What are the risks this early?" Kate asks, her breathing labored.

"I've seen babies go home at six months in a matter of weeks in the NICU; I've seen twins survive at seven months perfectly fine after time in the hospital—but there will be issues. I've seen the best and I've seen the worst, but we have an amazing team," the doctor tells Kate softly.

Kate nods and looks to her husband. "Don't leave me ok?" Kate asks, she looks so scared—so broken; it's rare that Kate shows this side of her.

"I will be beside you, always," Castle whispers into her ear. "You can do this. Our babies can do this," he promises her.

The surgical room is bleak and clean. Castle is told to put on a mask and a wraparound paper gown for the sake of cleanliness. Quickly, Castle follows the instructions of the nurses and sits at Kate's head, rubbing circles on her forehead with his thumb. Kate is awake because they gave her something that numbed her from the neck down. Kate looks at him nervously and Castle keeps his gaze locked on Kate—not on the fact that the doctors are currently cutting into his wife. "I think the boy will have your blue eyes," Kate says to Castle—in effort to distract herself.

For a moment, Castle forgets that he is in an OR room, where the stench of death almost filling the air, and focuses on Beckett. "What do you think the other baby will be?" Castle asks her.

Kate looks him dead in the eyes and a small smile spreads across her face. "I wasn't sure, but now I am, the other baby is a girl," Kate informs him.

Castle chuckles behind his mask. "I didn't want to tell you, but at one of the doctor's appointments I overheard the nurses say that we were having fraternal twins—and they mentioned both a male and a female," Castle tells her honestly.

Kate looks at him, shocked. "When was this?" she asks, outraged. "Why didn't you tell me?"

"About a month ago, I figured you wanted the surprise. I excused myself to go to the bathroom and ended up wandering around—I got distracted and overheard," Castle claims as he shrugs his shoulders.

"You get easily distracted, like Hanna," Kate comments.

The OR sounds engulf them again but Castle stays at Beckett's side.

"Baby A is out, looks like we have a boy!" the surgeon announces, but no cries fill the air. Kate looks at Castle in a panic.

"What's happening?" she pleads.

"Kate, calm down, he's being worked on, looks like they're clearing his airways," Castle assures her. Castle doesn't want to further scare her with the fact that he is small—tiny.

Within minutes, the doctor announces that baby B is out. "Looks like we have a girl!" he said as the doctors immediately go to work on her—all Castle can see that she has brown hair and she's even smaller than her brother.

Kate is crying, tears streaming down her face—Castle wipes them away. Just like that, a miraculous sound fills the air, a short cry. "Which one was that?" Kate pleads.

"Our boy," Castle tells her. All of his body is in panic—his whole body seems to tremble as they wait to hear another cry. Come on baby, come on.

Kate continues to cry silently and their babies are being completely surrounded. Seconds later, a second, louder cry fills the air. "It was her," Castle informs Kate with a smile. They are not out of the woods, but they're alive. Tears fill Castle's eyes as he tries to wipe away Kate's tears.

Bam! Thoughts?

I was close to writing in two boys, but a baby girl sounded perfect to kind of balance out the household. I promise you I will do this story justice!