Disclaimer: Castle is not mine.

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She raised her head from the desk, gazing subtly at Castle, through her eye lashes. Kyra's words were running through her mind; "He's all yours". When had their relationship developed to the point where other people had noticed the underlying combustible chemistry between the two. Kate absentmindedly ran her eyes over another report, giving the allusion that she was working. Had she been jealous of Castle's instantaneous reaction to his old flame? 'Yes' she thought, she could at least admit that to herself, albeit in her mind. She looked up from her report again, instead catching Castle's eyes. Their eyes locked, the familiar tension crackling through the air.

Castle had caught her moments earlier giving the impression that she was working. But he knew better. He had been following Kate for just over a year now and had come to learn most of Kate's facial expressions. She was deep in though about asomething. He had noticed, just after Kyra had said goodbye, that she had said something to Beckett. If he was to guess it was what was on her mind now.

"Castle, you are staring" she snapped.

He mumbled a incoherent apology, whilst his eye returned back to his phone. Whatever this thing was between himself and Beckett, was swiftly developing day by day working together. Did he want a relationship with Beckett?

He may not want that, but he certainly was interested to pursue whatever this was between them. He put down his phone loudly, in an attempt to attract her attention. Breaking her focus Beckett scowled at him.

"Bored already Castle? You could always help me with some paperwork instead of sitting their mindlessly".

"Oh Detective, how you wound me." he exaggerated clasping his hands over his heart. "Why would I want to help you with paperwork when I have better things to do", flashing her the famous Richard Castle smile.

Although, it didn't provoke the reaction that he had been hoping for. Instead of a quick witted response, all she did was sigh.

Becket was tired and didn't have the energy to keep up with Castle's almost childish behaviour;

"Go home Castle, it has been a long day and I'm sure an emotional one for yourself. Why don't you have a few days off and I'll see you on Monday?"

Feeling particularly scolded, Castle simply nodded his head, gathered his belongings and made his way towards the elevator.

Kate glanced over, her eyes tracking his slumped form out of the Precinct. Shaking her head she placed her face into her hands. Why did she always do this? Castle hadn't ever been particularly annoying. Taking a deep breathe, she promised herself she would swing by his place tomorrow. Knowing she wouldn't get any more work done for the rest of the evening, she too, packed her things and headed home.

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