I know, I should not be doing this but the idea was just stuck in my head. I loved Probable Cause and found it hard to stay silent after watching it... um, several times.

The story is post-5x05 but happens in the future, between 6 months and a year from now.

Disclaimer: Let me check again... Nope, I don't own anything!

Chapter 1

"Stop grousing! It's only for a week."

He gasped. "Are you saying you won't miss me?"

She rolled her eyes. "I'm not answering this kind of question."

...And he went back to whining. "Kaaaate, I am going to miss you. Why can't you go with me?"

"Because I have work to do. You know, here, in New York."

"But you need some vacation!"

"Who says it won't be a week of vacation for me too?" she teased him.

"I'm offended, Beckett!"

He turned his head so she couldn't see him and moped, mimicking a capricious child and refusing to talk to her.

"Castle! I was kidding, come on."

No reaction.

"I'm going to miss you."

He looked at her, interested but still didn't make a sound.

"I wish I could go with you?"

At this point she was only guessing what was the right thing to say.

"Nu-uh."

"Rick!"

Now, that wasn't fair for him.

She knew the effect it had on him.

Rick.

She said it more and more often lately.

It rolled off her tongue so easily and so lovingly.

He liked it.

She still called him Castle most of the times, Rick was for... special occasions.

Always meaningful.

Her tongue teased his name. She had done it on purpose and he wanted to kiss that smirk off her face away.

"You know, if you really want to... redeem yourself, there's only one thing to do." He paused for some dramatic effect. "Passionate... Violent... Animalistic..." He came up next to her ear and whispered, "Make-up sex."

Kate giggled and took a step back.

"We weren't even fighting!"

"Well, it can be make-up sex as in... make up for the week of chastity I'm going to have to go through because you're abandoning me?"

"Abandoning you? You're the one who's leaving!"

The last part of her sentence was swallowed by Castle's lips.

He took her face in his hands and pressed his lips on hers, insistent and needy.

The embrace left Beckett distraught and already extremely turned on – which wasn't surprising as she had quickly discovered that Castle knew just how to provoke a new kind of heat in her. A heat she wasn't able to control.

Writer of Heat, indeed.

He backed down a little and softly chasisted her. "You talk too much."

"For once it wasn't y..."

He crashed into her, making them fall in the couch. "See, you're doing it again," he mumured.

Nothing else was said as their mouths, hot and lustful, got busy with each other.

After some stumbling, some clothes flying and some bumping into various parts of the loft, Castle and Beckett had somehow made it to the bed. It turned out Kate took to heart Castle's requests and the sex had been... powerful.

This lust combined with their feelings made their unions special. Incomparable.

So here they were now, lying on the bed, breathing heavily. Both lying on their back, Castle's arm under Kate's neck.

"Do you really have to go?" She turned to pose her lips on his neck.

"Don't make me feel guilty," he moaned.

"Not trying to. It's just, after this hot session, I'm not sure I'll be able to survive a week... I have to make sure the path is free for my lover to come in.. - woah!"

Castle growled and brutally changed their positions, pinning her down on the mattress and securing her arms on both side of her head. From under him, his eyes were a deep shade of dark.

"You want to play dirty detective?"

And just like that, they were on for another round.

A shrill woke them from their slumber. After their exhausting efforts, they decided that a nap in each other's arms was a well-deserved reward. But the ringing of Castle's phone was obviously disregarding their plans.

He stood up in search of the damn object. He tried to remember where he could have left his pants and found them in the kitchen.

Uh, interesting.

He took the phone out of the pocket and saw Paula's picture flashing at him.

Paula? Why would she call him...?

Oh, shit.

LA, the book tour, the plane...

He was in trouble.

Kate vaguely heard from the bedroom Castle's voice, obviously stressed out.

Indeed, seconds after, he barged into the room, panicking.

"Paula is going to kill me." He fussed, looking for any clothes he could take. "Oh God, where is my suitcase?"

"What is happening? I thought you were not leaving for another several hours?"

"Have you looked at the time?"

"Not but... Oh!" They might have slept a lot longer than intented.

"Exactly," Castle cringed. "I'm so late."

Kate started helping him and, when they finished packing the suitcase – which probably didn't have any matching socks if you asked Kate - Castle noticed her shiny eyes.

"Hey. I will only be gone for a week, you said it yourself."

"I know. I'm ridiculous." A tear slided on her cheek and Castle wiped it with his thumb. "I'm not good with goodbyes."

Castle chuckled.

"Don't mock me, writer boy!"

"Never." He leaned in to kiss her.

"So, you're not coming with me at the airport?"

Kate wavered, she wanted to take advantage of him as much as she could but she would probably end up as a terrible mess.

At the same time, her phone lighted up, showing a message from the precinct.

Well, problem solved.

She looked at him with regrets. "Be safe. And don't do anything stupid!"

He winked at her. "You know me, detective!"

They went for another longing kiss, refusing to leave one another.

The bell rang at Castle's door and neither of them made a move. The ringing got more and more impatient until they were forced to separate.

"I think Paula's impatient."

"Yeah..."

They couldn't stop staring at each other and Castle's eyes became watery.

"Look, we're both ridiculous now." He rubbed his eyes. "I think that's my cue to go."

"Love you."

He kissed her one last time, quickly and softly.

"Love you too."

As it turned out, the week passed by quickly. He skyped Kate everyday, they texted each other and even though she teased him endlessly with some messages he certainly shouldn't have opened in public, he survived.

He was excited to get home and do all the things they only wrote about during the week. He could hardly wait. Truth is, it got the point he managed to get an early plane so he could surprise Kate. She wouldn't be here to welcome him at the airport but she did promise she would jump on him the second she saw him and what better place to do it than in his own home – much cleaner and safer than at a airport bathroom, that's for sure.

In the elevator of his building, he stamped his feet. From what she last told him, she didn't have a case and there was little chance she would stay so late to do paperwork. His mother being out of town, doing God knows what, God knows where, Kate had offered to house-sit.

It was a lame excuse and they both knew it. But it made him happy to know she voluntarily offered to stay at his house, and he was secretely hoping she spent the nights sleeping with his pillow in her arms.

Okay, he was definitely getting soft. But he couldn't find it in him to be ashamed.

As he unlocked his front door, silence and darkness welcomed him. Odd, he thought. Maybe she was asleep.

"Kate?"

Tun-tun-tun!

Tell me what you think and if you're interested in more.

Last but no least: Happy Halloween, everyone! It's not celebrated here so enjoy it for me, okay? :)