Disclaimer: I obviously (and unfortunately) don't own CSI or any of its characters. Sniff.

Pairing: First Grissom/Sara and Greg/Catherine, later Grillows (I am a shipper, ya know)

A/N: This is my first CSI fanfic, but not first overall. The big idea is inspired by JacobedRose's story "Date" but I'm not plagiarizing. And also, English is my second language, so be gentle on my mistakes. And most importantly - review or I will not know how you feel. Did I get your attention or failed? Now, enjoy!

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Catherine entered the lab to get results for her latest murder but Greg didn't even seem to notice. Instead, he was looking straight pass her with a dreamy look in his eyes.

„Greg, I need the blood results on the Pryce case. Do you have them?"

He continued to ignore her.

„Hello, Earth to Greg?" she snapped her fingers and he came back to reality.

„Huh? What? Catherine, what are you doing here?"

„Blood results. What were you thinking of?"

He blushed a little but enough for Catherine to notice. She turned around and saw Sara talking to Grissom.

She then looked at Greg again. The way he had looked at Sara was obvious. „Greg, do you have a thing for Sara?"

He blushed almost instantly but said, „ No! What gives you that crazy idea? She's a colleague of mine."

„Uhuh..."

„Besides... she's with Grissom anyway."

„I'm not sure they both want it."

Greg eyed her suspiciously. „What do you mean?"

„I mean – you want Sara and I can help you get that. Or, more likely, make her realize what it is that she wants."

„What's in it for you? I don't think you very much care about how Sara's lovelife is going."

„I don't." She gazed back and dedicated a couple of seconds to Grissom.

„You are in love with Bugman, aren't you?"

She didn't answer because she wasn't sure what to say. The truth was that she didn't know herself where she stood. Love? Maybe.

„C'mon, you have to be honest with me. Am I right?"

„You are. Now, do you want to listen about my plan?"

„You already have a plan?" he raised his eyebrow. „Shoot then."

XOXOXO

Grissom and Sara entered the locker room to get their things but the first thing they saw was Greg. Making out with someone who was pushed against the lockers and hidden underneath him.

Grissom coughed. „Greg?"

He turned around and coyly looked away. Grissom wasn't very much surprised at the fact him making out in the locker room but his partner surprised him. In fact, had it been Ecklie, he wouldn't have been half as surprised as he was.

„Catherine!" That didn't come out questioningly but more like reprimandigly.

She innocently looked at him and then at Sara who still hadn't closed her mouth that had fallen open at that sight.

„Sara... I actually came looking for you. I have the analysis on your murder case. Want to see them?" Greg acted as if nothing relevant had happened.

„Uh... yeah, sure." She still couldn't get her surprise off her face but followed Greg.

When they had left, Catherine opened her locker and took some things while Grissom continued to look at her blamingly.

„Care to explain, Cath?"

„Is there anything to explain? Not in my opinion," she smiled and turned to her things.

Her easy manner made him even more nervous than he already was. She took it as it was normal for her to make out with Greg in the locker room.

„Nothing to explain? Catherine, you were just making out with Greg like you two were teenagers!"

„Don't give me that tone! What is so wrong about it?"

He looked at her, surprised yet again. „He is your colleague. You need to have some sort of working ethics."

„We keep business and pleasure apart, thank you very much. We have drawn a line."

„That is not the point! He is too young; you're old enough to be his mother!"

She looked at him, offended. „I'm not that old."

„What is it, 17, 18 years? Do you think it is normal?" He wasn't acting like his usual confident self and he knew it. But the thought of Catherine with someone else just bothered him terribly.

She gave him an I-can't-believe-that-look and said. „You know what you are? I never thought I would say that to you but you are a hypocrite!"

„Excuse me?"

„Yes, a hypocrite. Why is it okay for you to date Sara and not okay for me to date Greg? Or do you think that you're not normal as well?"

„It's different with me and Sara."

„How so?"

„Well... I am older than she is, not the opposite. Wait, you're dating him?"

She took a step closer and Grissom saw a fierce look in her eyes. „Let me tell you something, Gil. There is nothing different about my relationship with Greg. I care of him and he cares of me and that's what really matters, not numbers. So leave your hypocracy and don't you dare to throw it in my face. I'm going to go and deal with my case now."

She walked to the door with a stern look on her face. He decided to give it one last try. „But he is no good for you."

„Funny, Grissom, I thought you were a friend, not my father. Besides – you're dating Sara so my lovelife shouldn't concern you."

She walked out of the door and slammed it behind her, leaving an astounded Grissom behind.

XOXOXO

„So, did it work?" Greg was obviously all ears as they were waiting for test results at the lab.

„Worked like charm. He was so shocked and a bit pissed off as well. His excuse was – „he is so much younger than you are." He could've thought out something better," she laughed and Greg smirked.

„What about you and Sara?"

„Well, she was very shocked as well. She didn't say a word until we got to the lab and then asked What was that all about? And I told her we are dating, right."

„Right."

„And she asked the same „isn't she old for you"-question that I blocked by implying to her and Grissom. I think they bought it."

They both laughed and were interrupted by the beeping of the machine.

„Results are in." Greg stood and took the paper.

„The blood on your towel has similar alleles as Mrs. Pryce's; it's a close relative."

„So she did have something to do with her daughter's death. Thanks, Greg. Or, should I say, honey?" she smiled and gave him a quick kiss on the cheek.

„Hey, I could get used to that," he smirked and watched her leave.

Grissom entered the lab and eyed Greg suspiciously. „I need the results for the Holden heist."

„Don't have them yet, the machine is still processing."

„Could I please get them today or do I have to wait until tomorrow?" His voice sounded irritaded and Greg didn't have to wonder about the cause.

„It'll be done any minute now."

He nodded and wanted to left but stopped abruptly as if something had crossed his mind.

„Greg, I don't know what is the meaning of this relationship with Catherine but I have to warn you. If you do anything to hurt her or break her heart I will not hesitate to make you regret that."

„Wow, back off, boss. I'm not planning on hurting her, I care a lot of her."

The same moment machine beeped and Greg was relieved to hear that voice.

„Here you go, tox report is here."

Grissom took the paper and left, before giving Greg a warning look.

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Anything you might want to say to me?