IMPORTANT! Note for readers: I'm planning this story as something interactive between you and me. It's going to go on until you guys want to, and that means I'm going to need your ideas and cooperation to make this work. These stories I plan on writing are going to be based on Castle's and Beckett's UST, which means they won't be actually doing anything. Let's call them vivid fantasies/situations that we're going to 'witness' while reading (or writing, in my case).

So, what I'm asking here is for your help. Feel free to suggest, point or ask for whatever crosses your mind and I'll write something about those ideas you give me.

Have in mind that I'm only one person and it'll take time for me to go over all your suggestions, so please, be patient with me! I'm writing another multi-chapter story and I'll have to divide my time.

I'll be willingly waiting for your great ideas so I can go on with chapter 2! Thank you! :)

DISCLAIMER: No, not mine… :( At least I get to play with them ;)

CHAPTER 1: You Give Me Fever.

They had been working for four hours straight on the murder board, all of them adding pictures, descriptions, new leads, CSU and autopsy reports, persons of interest and whatever they could hang or write in there that could help them catch the bad guy.

They were all a little shocked because the victim was a very young girl, and even though any of them said anything, that fact made them more committed to the investigation.

It was already well past 10 pm when Beckett sent the boys home. Castle denied leaving until she did, and Kate was kind of thankful for that. She had grown accustomed to his company at the precinct and being there by her own felt a little awkward lately.

Castle excused himself to make a visit to the restrooms and Kate went to the break room to make both of them some coffee.

Public domain was that Beckett was not good friends with the Espresso machine, and to be truthful to that saying, right when she was about to heat the milk, the traitorous appliance started to expel steam in every direction burning her hand. Her thumb was the most damaged part of it and she tried to sooth it putting it in her mouth.

Castle, who was already at the break room's door watching her, could not keep his mind out of the gutter, going a million miles away, imagining what would happen if he was not such a chicken and made a move on Beckett. That simple gesture of her sucking on her thumb had made him go wild.

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Rick walked towards the detective, his gaze fixated on her luscious lips, while they sucked her burnt finger delicately. She was oblivious to his presence and startled a bit when she felt his hand on her shoulder.

"Can I help?" He asked, his voice sounding deep and seductive.

Kate gave him a shy smile and pulled her thumb out of her mouth, her saliva shining on it and making it cool under the room's air. "Can you heal it?" she asked, her eyes daring him.

Rick took her hand in his and moved it to his mouth, circling the little pad with his own lips and lapping it with his tongue. Kate let out a soft, surprised moan that got under his skin making him so very hot. That woman was going to be the death of him.

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"Castle, are you ok?" Beckett asked waving her hand in front of Castle's eyes and giving him a concerned look.

"Uh?" He blinked out of his fantasy, kind of confused. "Yeah, fine." God, how did he want her.

"You were in another planet…" The cop added with a soft laugh. "Here, I made you coffee." She said with a wide smile. "Take it as a once in a life time treat; I almost lost my hand in the attempt."

Castle managed to let out a silly laugh before taking the cup from her hand, brushing their fingers together. Just that little contact triggered another 'trip' to his private world.

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Pulling her finger out of his mouth he kissed her palm before drawing her closer to him so he could speak in her ear.

"Anything else you got burned?" He asked mischievously, his eyes not leaving hers.

Kate replied with a smirk of her own, nodding her head and brushing her index finger over his lips. He opened his mouth and licked the slender digit with the same intensity he did the first one, letting his teeth graze her tender skin and making her shiver.

Rick let out a loud groan, letting go of her hand and reaching for her mouth instead. He kissed her passionately, his tongue wrestling hers for every molecule of oxygen that was left in their mouths. Her teeth bit on his lower lip, making him moan and he returned the 'favor' by pulling on her hair lightly.

"God, Castle! This feels so much better than I thought it would." She said on a gasp, running her fingers through his skull.

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Castle let out soft moan without even realizing it, he was totally oblivious to the 'real world' by then, and he didn't noticed Beckett's concerned face when she turned around and found him still at the break room's door, staring blankly at nothing in particular, with his coffee in hand and his face completely flushed.

She walked towards him putting a hand to his forehead. "Castle, are you sure you're ok?"

The writer jumped at the contact with her hand and had to reach for the door's frame to steady himself. "Yeah, fine. Why?"

Beckett narrowed her eyes giving him one of her best 'looks' and shook her head. "You're acting weird. You're all flushed, I'm worried you might be running a fever."

Castle managed to hold a little chuckle. If you only knew, he thought. "Why, detective? You worried about me? I'm touched." He joked.

Kate moved closer to him holding his head with both her hands, making him lean it downwards so she could press her mouth to his forehead. When he felt her soft lips pressed against his flesh, he jumped, moving himself from her touch. Not that he was complaining…

"What are you doing?" He asked; the air caught up in his lungs.

The detective gave him a mischievous smile and took a step closer. "I'm just checking your temperature, Castle. Relax."

He was starting to feel really hot, and not the way Beckett thought. He couldn't let her get any closer or he'll end up embarrassing himself. "Don't you have to use a thermometer for that?"

Kate narrowed her eyes and smirked. "Ok. I think I have one somewhere in my desk." She said. "But first, let's get you to the couch so you can lay down, ok? You don't look good."

Castle frowned. Worried Beckett was kind of cool. She was touchy and caring and she didn't mind staying close to him, but he couldn't deal with that right now.

He was still thinking about how to make her stay away, when he felt her hand in his shoulder, pushing him towards the couch. He startled, taking a step forwards and tripping over Kate's foot, falling over her. It was a good thing that the doorframe held her stopping the fall. But then again, maybe it was not that good. His whole body was pressed against hers and he was absolutely sure that she could feel the consequences of his dirty mind. Busted.

None of them moved for a while. She was surprised and worried about him and he… Well, he was just embarrassed.

"Hey. You ok?" Beckett asked after a couple of minutes.

Castle nodded, his nose buried in her neck, her scent creating new images in his mind that he really needed to control. "I'm fine."

At last she pushed him gently and held his arm to help him walk to the couch. When he was sat and comfortable – she made sure of it – she went to look for the thermometer, coming back with it in no time.

"Here it is." She said leaning over him. "Let me undo a couple of buttons so I can put it on." She added, her hands already working on his shirt.

The touch of her hand on his bare skin when she put the thermometer under his arm made him shiver. Kate felt it and her face softened, giving him a warm look and brushing his hair out of his face.

This really was a discovery. He needed to get sick more often. Actually, he needed to get sick for real more often.

They waited there, sat side by side until the little thing beeped, letting them know that his charade was coming to an end. Kate reached for it and checked the answer.

"Hmm. 100.4, Castle. You need to go home." She said, almost sadly. "You need rest and some Tylenol."

Rick couldn't hide his surprise. He was sick? Could a steamy fantasy give you a real fever? Or was it the fever making him imagine those things?

He stood up and followed her to the bullpen. "But you still have things to do and I don't want to leave you alone." He whined.

Beckett laughed and rolled her eyes. "I'll be fine, Castle. You need to go to bed and get rid of that fever. I need my whole team working on this case, ok? Go home."

He took his phone out and called a car. At least that gave him more time with her that just leaving and hailing a cab. She kept touching him every few minutes with the excuse of checking his temperature and, even though he felt perfectly fine, he kept looking at her with puppy dog eyes.

The car arrived and he got a text from the driver. "Albert is here." He said, standing from his chair and putting on his coat. "See you tomorrow, Beckett. And thanks for… taking care of me."

Kate just smiled and shook here head. "No need to thank me." She said softly, her eyes locking with his. "Night, Castle. Get well."

He arrived home twenty minutes later, and before taking the Tylenol; he decided to put on the thermometer to see if there had been any changes. He waited a couple of minutes until the little device beeped, and then took it out to read it. 97.2 Perfectly normal. Now, that was weird.

He fished for his phone and sent her a text:

I just took my temperature and it's absolutely normal. Anything you want to tell me, detective?

He didn't have to wait long for her answer:

Normal, huh? Maybe it's me who gives you fever, Writerboy? ;)

He smiled, putting his phone back in his pocket. There was no need to reply to that, she already knew the answer.

Thoughts? Ideas for next chapter? Want to kill me because you hate it? Let me know ;)