Hey guys! Back again. This has the potential to have one more chapter, although it could possibly stand alone. If you want more, you'll have to review! I have exams in a week so I'll definitely be more motivated to write more if you like it, otherwise I have waaaay to much to learn about climate change and the world food supply and biochemistry and fun stuff like that. As always, hope you enjoy this, and have an awesome day – kate :)

Brennan may have been ignorant about a lot of social customs, but there were some things that even she noticed. Like the undeniable sexual tension between herself and Booth. Brennan knew all about chemistry having taken a few papers at university as she collected her various degrees. And although she would never admit to it, she was finding BB 101 one hell of a lot more interesting than chem 101 ever was. That didn't stop her from denying it though, because if she were to let Angela in on that little secret, she would want action. In both senses of the word.

So Brennan didn't admit to it. But then neither did Booth. And Brennan thought, he almost had it worse than she did. Hell, she could practically smell the pheromones coming of him sometimes. To avoid the issue, they both dated other people as it provided an outlet for all that pent up frustration that resulted from their little game.

It wasn't like they were using their respective bed mates, each reasoned. After all, they were getting some pretty serious physical gratification as well, with all those endorphins being generated. Plus, it wasn't like the relationships were serious – they were just a way of passing time until they stopped playing the game.

Angela may have thought Brennan naïve, but she was intimately acquainted with the game. She was well versed about the points system and had the rules so well down, she practically had swallowed them. Since the game had lasted over a year and a half, both players had a large arsenal of moves at their disposal. Touches, caresses, words, even tones of voice designed purely to drive the other mad.

Because that was what the game was about. Both know that the other was attracted to them, but neither wanted to make the first move. The game, where points were awarded for a reaction to any action that could have sexual connotations, meant they could deal with those feelings in an environment in which they were both comfortable.

It started off innocently enough; a touch on the arm, or a palm resting in the small of the back, sometimes a smile, but nothing more. That phase hadn't lasted long. You couldn't get a big score if you hand around that area of the scoreboard. Gradually things had escalated, their plays turning into hugs, and kisses on cheeks.

But things had really heated up recently. First Brennan began dating David. Previously, Booth hadn't really had an issue with Brennan dating other men, but for some reason David got on his nerves. He had wondered previously whether it was because their first date was so closely tied with the incident concerning . Booth still shuddered about that, although he tried not to do it around Brennan. He didn't want her getting more points than she deserved.

Then Booth himself had a few sexual encounters himself. First it was Rebecca, then Cam. The first Brennan could deal with but the second…that was just bad taste itself. As Brennan's boss, Cam should have been off limits, but they had no holds over each other, and it wasn't against the rules of the game. That didn't stop Bren being hurt and angry. She was well aware of the fact that he wasn't hers, and even though she felt that sex could be purely recreational, it didn't stop her from feeling that Booth could be a little more selective about his doubles partner.

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Brennan looked up from her desk to find Booth leaning casually against the doorframe, a smirk plastered on his face. Nothing out of the ordinary there.

"What are you doing here?" Brennan got straight to the point.

"We've got a case. You need to come out to the scene."

"Really?" She raised her eyebrows and decided to go for the knife in the back approach. "You asked Camille about this?"

He just shrugged his shoulders. "C'mon Bones, lets move."

Brennan stood and arched her back, stretching. Glancing at Booth, she caught him looking appreciatively at her.

"Ten points," she said and grinned.

He just glared as he sauntered over to stand behind her and remove her lab coat. Lifting her hair, he worked the deep blue garment from her shoulders, his breath caressing her exposed neck, causing goose bumps to appear.

"Thirty points"

On the way out of the lab he placed his hand in the small of her back, a gesture so often performed it now merited no points. That didn't mean it had no effect though…Bones glanced at him.

"That's the best you've got?" she asked, raising her eyebrows.

"You're asking for it," he replied, sliding his hand on a diagonal so it cupped her hip.

"Thirty points," he whispered in her ear, and then upped it to forty as she visibly shuddered. Brennan cursed her body's reactions to this man.

"You know I'll catch up," she retorted as she walked off ahead of him, hips swaying seductively. With the challenge bright in her eyes, she didn't even need to turn around to know that her score was due to be increased. "Fifteen points," Brennan called out as she briskly walked out of the lab.

Booth groaned as he caught the swinging door and followed her out into the bright sunshine. Then he changed his mind – he was ahead by forty five points, and he was driving.

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On the way to the scene, neither Booth nor Brennan attempted to increase their scores. Instead, Brennan read over the case file, bringing herself up to data with the information already collected about the remains.

The ride back to the Jeffersonian was different though – the remains had been examined and packed for transport and there was nothing that either could do until the bones were on the examination table.

Booth had his eyes fixed on the road, so Bones took a chance, knowing she needed to catch up. She reached her hand out and placed it firmed on his right thigh. Booth inhaled sharply.

"Forty points." She grinned over at him, as he glowered. Brennan decided to be a little more daring and walked her hand up a little further, using her index and middle fingers. Booth could feel the light pressure of her finger tips burning into his thigh, and he groaned. "Yes", Brennan thought, while her partner cursed himself. "Damn". Brennan pulled her hand away and placed it demurely in her hap as she voiced the latest addition to her score. "Forty points".

At that moment Booth couldn't care less about the score line – he was still trying to get himself back under control and focus on something else other than his need for Brennan to touch him again.

Upon their arrival at the museum, Bones headed to the remains room to begin her examination. Booth, unable to help, disappeared back to his SUV, his destination the Hoover Building. Bones was well aware that he had departed the Jeffersonian, so she knew she could relax and apply herself to the remains that sat on the table before her. It was one of the unspoken rules of the game. It was only able to be played at those times when work wasn't their first priority. That didn't mean that it wasn't lurking at the back of her mind, however. She always needed new ideas, ways to surprise her playmate. Plus, Booth would definitely be back later with some radical way of trying to catch up, and she had to be on her toes in anticipation of that.