Title: Jealousy?

Author: Syalie

Beta Reader: MDDC26

I want to thanks MDDC26 for the Fabulous Beta, couldn't have done it without her :)

Disclaimer: All publicly recognizable characters, settings, etc. are the property of their respective owners. And no profit is earned through this creation.

Set started at season 2 episode 5 (The bone yard), might contains some spoiler of season 2, but don't worry, we all watched them already :p

Chapter 1:

It's late and Tony had already gone home, like most of the NCIS employees had at this time of night.

Kate dragged McGee down to the gym.

"We'll have a rematch! This time I will make sure you're well trained. You really need to work on your fitness!" Kate says, dragging a reluctant Tim by the hand.

Tim followed her, mumbling to himself about a rematch being unnecessary, and that he was really tired – he would really like to home now. Kate turned a deaf ear to his complaints and kept dragging him with her.

The gym was empty, as expected - Kate had made sure that everyone had left and the gym was empty, not wanting other people to see their training. She knew how shy McGee was, and she wanted to avoid embarrassing him. She intended to toughen him up a little bit, and teach him that doing things by the book is not always the best way to do things, sometimes, you needed to be aware of real life.

"Ok, Tim, let's get started. This time, don't hesitate just because I'm a woman." Kate said, getting into position in the middle of the mat after they got changed to their gym clothes. Tim got into position too. Then while he was still trying to talk Kate out of this - something tackled him from behind and knocked him, face down - grunting as he hit the mat.

He used his wrestling techniques to flip them, not wanting to get kicked in the groin again - he sat on top of Kate legs this time, and smiled.

"Now you can't kick me again!" He smirks, victorious, but Kate doesn't give up,

"That's good, you've learnt!" Kate says. Tim loosened his grip on Kate, thinking that their training was over and he had won.

"Are we done?" he asked. When Kate smiled, he took it as a yes and he loosened his grip on Kate's hands. He was trying to stand up when Kate elbowed him in the ribs, and tackled him, using his unsteady legs to flip up their position. Now it's Kate sitting on top of him – she has used his own move to get back at him. Only Kate had miscalculated, because she was smaller than Tim, and somehow she landed with her face only an inch from Tim's.

"Cheater," Tim's said, his eyes closed because his ribs were sore from being brutally elbowed.

"You should have expected it" she smirked, "you don't ever learn, do you?"

She too had just realized their closeness, as Tim opened his eyes, and looked directly to Kate's. For a moment, their eyes locked, and between one second and the next, they were kissing, passion growing between them until the inevitable followed.

Unbeknownst to the two getting cosy on the mats, Gibbs headed to the showers in the gym - wanting to shower before heading home. His shower had broken this morning, and he was too tired to get it fixed tonight. They'd had a very long day today, but even from the men's locker room he noticed that the gym's light was on.

Curious, he made his way there to see who was using the gym this late. What he saw there was something that far exceeded his initial expectations. He saw Kate and Tim in there, in the middle of their "exercise."

Something had been building in his chest - anger, jealousy, something dark that he had not felt for so many years and he forced himself to leave, deciding he had seen enough. He headed to back to take a long shower - fists clenched in anger.

Instead of taking the hot shower he had planned. Gibbs had bathed in cold water - he needed to cool down his head and if possible his heart.

He always knew that Kate was special, but until walking in on her with McGee - he hadn't known how much Kate meant to him. She had brought back emotions that he thought he'd never feel again.

He made the startled realisation that he was in love with her. What should he do with that? What about rule 12?

He spent more than an hour in there, till he his skin was wrinkled and his head had cooled enough. Turning off the shower, he got dressed and started for home