How did Kate even find it? Not even Alexis knew about my "safe room". She barely spent 10 minutes in there. I was putting my pants on when she walked in.

"Hey, what's for supper?" She asked.

"Whatever you want. I'm yours." I replied, hugging her. Because of the release of Deadly Heat, Paula and Gina were keeping me at Black Pawn. Beckett had a double homicide to solve. A man and daughter were gun down and shot at their apartment. Turns out Mr. Anderson had an affair with his daughter's teacher. The teacher's husband found out and killed Mr. Anderson. Rebecca wasn't supposed to get hurt. She leaned over to give her dad a goodnight hug when Joel pulled the trigger. Mr. Anderson got up and approached Joel when he fired the gun a second time.

"What's this?" She asked, holding up my Captain Malcolm Reynolds costume.

"My Captain Malcolm Reynolds outfit. Do you mind? That's a one-of-a-kind outfit." I said, grabbing it, laying it down on my side of the bed and smoothing it out.

"I never thought you'd be a Joss Whedon fan is all."

"Well, you're a Nebula 9 fan!"

"We'll continue this discussion after we eat."

I prepared stir fry and talked about the Anderson case. We watched Serenity and Jail. I was hopping Kate would forget about my Firefly obsession. Unfortunately, she didn't forget.

"Castle? Do you have any other Firefly memorabilia?"

"Yea, it's in what I like to call my "safe room". But, you'll never find it." I knew she was going to find it eventually. I was hopping to keep it hidden for a couple more weeks.

"You have a "safe room"?! Why am I not surprised? Where is it? I'm thinking its in your office since I never saw it in your room." Running, and I mean RUNNING towards my office, she stopped at my desk and spun around. I sat down on my old brown chair watching her. Have I mentioned how much I like to stare at her? Anyways, she was looking at my shelves when she noticed the picture of the spiral staircase behind my desk wasn't straight anymore. She took the picture off the wall and pulled the lever down. Suddenly, the floor behind my desk reveled a set of stairs that were placed at an angle. Cautiously, she went down and entered my "safe room". I had it built so it looked like Serenity. I had life size replicas of the entire crew. She walked up the bridge when she saw Malcolm Reynolds.

"Castle, you look like Captain Mal."

" I've been told I look like Nathan Fillion. Do you like it?" I replied, hopping she would say yes.

"YES! Although my obsetion isn't quite this big."

"Your obsetion! You watched Firefly too?!" How could I NOT see this? She watches Nebula 9, which takes place in SPACE!

"Of course. My dad made me watch one episode if I made him watch one episode of Nebula 9. He can't stand it. I stood in line to watch Serenity in theaters."

"Me too! Only about standing in line. Which theater did you go to?"

"I was at the Hamptons for the week. My dad's friend had a place there and invited us there to forget about the past. The next time I was at the Hamptons was with you."

Knowing the time was right, I got down on one knee. " Katherine Houghton Beckett, will you be my one and done, my forever, my always? Will you marry me?"

"YES! You're my one and done too." I placed the Tiffany & Co. ring on her right hand and pulled her in for a kiss.

"What do you think good names would be for the twins?"

"What twins?"

"Ours. Rick, I'm pregnant."