Castle was driving back from the precinct. He looked at his wedding band on his left hand. They'd gotten married one year ago today.

He had told Kate that he'd left his jacket at the precinct which was true but he'd left it on purpose. He was using it as an excuse to go to the precinct so he could get their anniversary gift to her, which he'd been hiding in Espo's desk. He hoped she wasn't suspecting anything, but her being a detective, he wouldn't be surprised if she had figured out something was up. What Castle didn't know was that she hadn't figured anything out, but she did have a secret surprise of her own.

When Castle walked into the loft, he could smell the spaghetti Kate was cooking.

"Kate?" he called walking into the kitchen. She wasn't there.

"In the bedroom, Castle!" her voice coming from their room.

After they'd gotten married, well, actually for a long time Castle had called Kate, "Becket" at work and Kate everywhere else. After they'd gotten married , he'd gradually started to call her Kate more and more at work until he was calling her Kate all the time. At first, she was annoyed by it, but then she realized how cute it was that he wanted to call her by her name all the time, and since they were married now and not just colleges, it made sense to call each other by their first names. But everyone except his fans, his mother, and Alexis called him Castle, and that was what she liked calling him. So he was still Castle to her, which he liked.

He walked into their room but was stopped in his tracks.

"Wow! You're… sexy!" he said. She was wearing a red low cut cocktail dress and red stilettos.

She smiled at him. "Thanks, Castle. Burn this picture into your mind because you won't see me like this for a long time." She told him.

"Damn it!" he said, his dreams crushed. But he wouldn't be disappointed by that when he found out why.

She smiled knowingly to himself. "Come on Castle, let's go eat." She said taking his hand and pulling him with her out to the kitchen.

After dinner, they were sitting on the couch together, side by side, with their fingers intertwined.

"Kate?" he said.

"Yes Castle?" she answered, looking up at him without taking her head off his shoulder.

"Can I give you your present now?"

She chuckled, sitting up and looking him in the eyes. "Nope…" she replied.

"Ok, so I… wait. What?" he looked at her obviously very confused.

"Nope. Not until I give you yours." She said smirking at him.

"I can't argue with that. So what'd I get?" he asked. He was in "nine year old on a sugar high" mode now and she was going to take advantage of it.

"You have to find it."

"What? How?" he asked, his curiosity rising even more.

"With clue. Here's you first one." She said handing him an index card. "So I get to the detective now? YES!" he said before he took it and read it out loud. "Go where you write best."

He knew exactly where this lead. He went to his study, with Kate following him.

"Ok now what?" he looked over at her.

"Find your next clue Castle. You know how this game works by now, don't you? We do this every day." She told him, but by then he wasn't listening anymore. He was now reading the index card that was on the desk.

"Go to the.." he paused, "bathroom?" he finished, looking at her clearly very puzzled.

He shrugged and walked into their room and into the bathroom. He looked around, confused. He looked at Kate, then back around, then back at Kate again. When he looked around for the third time, he saw it. A little purple package, tied with a purple ribbon. His face lit up when he found it, but he was still a little confused.

"Why is it in the bathroom?" he thought to himself.

He looked back at her before he hesitantly picked it up. He looked at her again. He slowly opened it. There was a not. "Happy Anniversary Daddy!"

Now he was really confused.

"Why would Alexis leave a gift on the… wait!" he thought..

For the first time since he opened the package, he actually looked at the box, and then his heart skipped a beat. It was a pregnancy test.

"No, no way!" he thought as she started to open the box.

"Is this real?"

He pulled the test out of the box. He looked at her and her smile was so big, and his was even bigger as he turned the test over. Two blue lines. Positive. He was filled with so much joy. He looked at Kate in disbelief as if he was looking for confirmation. She nodded, and he ran towards her and hugged her tightly, and he kissed her over and over again.

"We're having a baby!" he whispered into her ear as he fought back tears, hugging her still.

"Yeah Castle. We're having a baby." She whispered, as tears rolled down her cheeks as she hugged him tightly.

When he pulled away from her he looked her in the eyes.

"I can't top that gift, but I think you'll still like yours." He told her. He took a small, long box and gave it to her. She smiled as she opened the small box. Inside she found a little note that said, "I love you with all my heart! Love, Rick" and with it she found a diamond necklace in the shape of a K. She gasped a little, as she looked up at him. "It's beautiful, Castle." He beamed as he took the necklace and helped her put it on.

"Just like you." He told her, wrapping his arms around her from behind. He kissed he cheek. "Do you wanna call it a night? We can spend the rest of the night together in our room." he said.

"That depends." She replied, turning around to face him. He looked puzzled . "On what?"

"On what we're going to be doing." She said mischievously.

"I have a few ideas you might like." He said playing along with her game.

"I was thinking we could maybe start with… this." He said and lunged towards her kissing her passionately .

"Close the door and I'll show you something special." She said.

He did and they made love like it was the first time.