"We need a song, Castle."

He looked up from his desk and chuckled at her. She wore his button up that only fell to mid-thigh, the three middle buttons keeping the shirt on her, with her hair messy from the sex they had just had.

"You look gorgeous."

"I'm serious Castle" she sighed, padding into his room. She sat against the edge of his desk, running a hand through her hair. She dropped the hand to her thigh and stared down at the beautiful ring he had put on her finger a month before. "We need a song. You know that goddamn woman you hired to plan this is going to push at us for a song sooner or later. The wedding is in 40 days. 40 days, and we still haven't found a song to dance to."

"Don't worry" he smiled. Castle turned his chair a little and wrapped his arms around her waist, pulling her into his lap. His lips found hers and he slowly kissed her, thoroughly exploring her mouth.

In what felt like an eternity later, he broke the kiss, caressing her upper thigh.

"I don't want to worry about it, Castle."

"How about 'You Talk Too Much' by Clarence Carter?"

"Very funny" she groaned, slapping his chest. She let out a heavy sigh and dropped her head to his shoulder, her hand coming up to play with the hairs on the back of his neck.

"I want it to be an old song" she whispered, curling into his chest. "Nothing recent. Like, from the 50's or 60's. You know, the classics."

"I feel like that would work for us old souls." He felt her smile against his neck and chuckled, tugging her in closer. He dropped his head a little and pressed a kiss to her jawbone.

"I don't know about you, Castle, but I'm pretty young. You, old man, I don't know about… Oh, is that a gray?"

"Not funny" Castle growled, pulling her in even closer, his teeth grazing over the sensitive spot on her neck.

She gasped, her hand dropping to grip onto his shoulder. "Mmm. B-but, come on, s-seriously" she trembled, pulling away from him, no matter how much her body protested it. "What were you thinking?"

"Anything you want, Kate."

"Okay" she sighed, leaning in to press a chaste kiss to his lips. "I'm going to go make a cup of coffee. You want one?"

"Of course. I'll be in here finishing up this chapter."

Kate nodded and left the room. Once out of sight, Castle smiled and turned to his computer, pulling up his iTunes.

When Kate came back in, bearing two cups of coffee in her hands, she gasped at the sight. There were candles everywhere. At least 15 spread carefully around the room lighting up the area. The over-head lights had been turned off, and Castle was sitting on the edge of his desk, smiling at her.

"What's all this?" she asked, stepping carefully into the room. She handed him his coffee before sipping hers, her eyes wandering as she took in the sight.

"Setting the mood" he said, sipping his coffee. He set down his cup before gently removing hers from her hands, setting it down beside his. He reached around and hit the play button on his computer, music filling up the empty sound in the room.

"Ms. Beckett, may I have this dance?" he asked, very gentleman like, while the beginning chords of 'The Way You Look Tonight' played through the speakers.

"Of course" she smiled, a giggle leaving her lips as he took her hands, twirling her around before pulling her comfortably into his arms.

"I figured we could start with something fast. You know, lighten the mood some" he commented, his arm securing more around her waist as they danced.

"It works" she smiled, letting out a laugh as he spun her out of his arms, before pulling her back in, her body pressed flush against his. "You're a very good dancer, Castle. I must say that I'm impressed."

The song changed to Frank Sinatra's 'You Make Me Feel So Young', making Kate laugh. "I don't think we can dance to this at our wedding, Castle. People might start making cracks at your age."

"And by people do you mean you, Lanie, the boys, and my daughter?"

She shrugged, glancing up at him. "I don't know what you're talking about."

He groaned and pulled her in for a quick kiss, pulling away before she could deepen it.

"I love you, Writer Man."

"Love you too, Detective."

They danced to a few more songs, all from the same time era. Some songs, they had both decided, were definite contenders for their wedding song, but nothing seemed right for them.

'What A Wonderful World' had just ended, and Kate's head dropped onto Castle's shoulder, still slowly dancing back and forth to the sound of nothing in the room.

"I think you ran out of songs" she commented, pressing a kiss into his shoulder.

"No, there's one or two more. I'm sure of it. Just, give it a second."

A moment later, a song started playing through the speakers. It was one Kate recognized from her memories, but couldn't quite pinpoint what it was, but there was one thing she was certain about.

The song was perfect.

Their feet moved slowly to the sounds of the trumpet coming through. There hadn't been any words in the song yet, but Kate could still tell this was going to be perfect.

When the words began, Kate looked up at her fiancé; her gorgeous, wonderful fiancé that she didn't deserve. As she listened to the words, she knew that he could feel the connection as well.

Hold me close and hold me fast, the magic spell you cast, this is la vie en rose.

When you kiss me, heaven sighs, and though I close my eyes, I see la vie en rose.

When you press me to your heart, I'm in a world apart, a world where roses bloom.

And when you speak angels sing from above.

Every day words seem to turn into love songs.

Give your heart and soul to me, and life will always be, la vie en rose.

"That's it" she whispered after the lyrics finished. "That's the song."

"You could tell too?" he asked, clutching her close to his chest.

"It was… It was perfect." She stretched up and kissed him softly. "Thank you for doing this. It was perfect."

"Always, Kate."

Song- 'La Vie En Rose' by Louis Armstrong.

Hope you all enjoyed it! Sorry the update took so long. College now exists.