Title: First Blush
Author: atthebeginningwithyou

Rating: T
Summary: Crossover (kinda) with NCIS. When Special Agent Tony DiNozzo helps the CSI team on a case involving a naval officer, sparks fly between Tony and Sara. What does Grissom think about all this?
Disclaimer: None of them belong to me… although I wouldn't mind some Michael Weatherly or Billy Peterson for my next birthday.
Author's Notes: Crossover with NCIS, well just Special Agent Tony DiNozzo (a show I just recently got really obsessed with drools). Set pre Canon. I'm still unsure if this will end up GSR or not. It probably will, we will see, because Tony is quite a catch I think. le sigh

Thanks to LosingInTranslation for the beta!

Chapter 1

"At first blush the idea possesses considerable intuitive appeal but on closer examination it fails"

Sara Sidle sauntered toward the break room in search of some much needed coffee. The aroma of a fresh batch invaded her senses as she approached the door. She was greeted with the sight of Greg brewing a new batch of his special Blue Hawaiian. Sara smiled as Greg handed her a fresh cup, which she graciously took.

"Do you have any idea why Grissom called us in early for shift?" Greg questioned as he sat down at the table.

"No idea" Sara replied back as she eased herself onto the couch. One by one the rest of the team filtered in with tired looks on all their faces. They all sat down awaiting their supervisor and an explanation of why they were here so early.

Finally, Grissom walked in a minute later with a man trailing behind him. The investigators curiously eyed the man that followed Grissom in as he motioned for him to step into the room.

"Alright guys, we have a tough case on our hands" Grissom explained. "All hands are on deck. We have three murdered naval officers in a room at the Bellagio. One of them is apparently a war hero which is why this case is so high profile. Eckile insists that an NCIS special agent be with us for this investigation. So Special Agent Anthony DiNozzo is here to help with the case." Grissom finished with annoyance obvious in his voice, gesturing towards the man on his left.

The team looked shocked for a moment before Catherine rose and introduced herself "Hi, I'm Catherine. And this is Warrick, Nick, Greg, and Sara."

DiNozzo stretched out his arm to shake hands with the rest of the team. Sara rose as DiNozzo stretched his hand to hers. "Why hello, Sara." DiNozzo said with a smirk as he pushed his sunglasses onto the top of his head.

"Fancy seeing you here, DiNozzo" Sara replied. Sara felt a wave of warmth invade her body as their hands connected. The familiar feeling of butterflies filled her stomach again. Here, before her stood a man she has not seen in years. Yet, the feelings that she thought were gone forever came back with a vengeance.

"Why so formal, Sweet Cheeks? I thought we were on a first name basis," DiNozzo grinned.

Sara felt a blush creep up her cheeks. "We would be, if you finally stop calling me 'Sweet Cheeks', although it is refreshing to see that your jackass attitude is still in place" Sara shot back.

"Sara, my dear, I believe you meant charm, not attitude," DiNozzo explained as he invaded her personal space.

The room was silent for a moment, as the rest of the team watched the flirtatious banter between the two until Greg finally spoke up "Wait, you two know each other?"

Sara shot a glance towards DiNozzo "Yeah, I've known Little Hairy Butt over here for over 10 years now."

"Hey!" DiNozzo exclaimed "I thought we were laying off the pet names… Pookie."

Sara bit back a grin as she turned back to the rest of the team "Tony and I worked a couple of cases together when I was looking for a job after college. I went to DC to check out forensic positions in the federal government and did a trial period with NCIS for a month. Then I realized how much I missed the Pacific Ocean, so I went back to San Francisco."

She quickly turned her attention back to DiNozzo "So, how's Gibbs?"

"He knew you were here, so he told me to give you this," DiNozzo explained as he playfully slapped her on the back of the head.

"Tell Gibbs I miss him too," Sara smiled.

Sara was so immersed in conversation with her old friend, that she failed to notice the glaring look Grissom was directing to the man who stood a little too close to her.

The rest of the team looked at the ongoing conversation in shock. Catherine leaned over to Nick and Warrick, "I didn't know that Sara worked with NCIS!"

"Neither did I," replied Nick. "I guess there are a lot of things we don't know about Sara's life before she moved to Vegas."

"It seems like she and Special Agent DiNozzo know each other pretty well," Greg whispered as he scooted closer to the group.

"A little too well" Catherine chimed in as she eyed DiNozzo up and down. "I have to admit that she has a fine taste in men."

"What does he have that I don't?" Greg sighed to himself as he ran his fingers through his hair.

Grissom could not stand watching Sara and DiNozzo flirt for one more second. He cleared his throat loudly, which caused everyone to snap their attention back towards him. "Now, if we can get to work please?" Grissom gruffly stated as he glared at DiNozzo.

"Sorry, Sir," DiNozzo answered coolly as he followed Grissom out the door.

"We'll take two Tahoes to the crime scene" Grissom explained as the team headed towards the garage. "I'll drive one and Warrick will drive the other" he finished as he tossed a second set of keys to Warrick. Catherine and Nick headed over to one Tahoe with Warrick, while Grissom, Greg, Sara, and DiNozzo headed to the other.

"I wish I could be a fly on the wall in the other Tahoe," Catherine muttered to Nick and Warrick as they approached their Tahoe.

"It should be an interesting ride" Nick agreed as he jumped into the back seat.

"Shotgun!" Greg exclaimed as he raced towards the other SUV. Sara rolled her eyes playfully at Tony as she climbed into the back row of seats.

DiNozzo slid in next to her and muttered "His loss, because now we can make out back here."

Grissom's face paled as he heard the comment. He now disliked that man with every bone in his body.

Sara chuckled while giving DiNozzo a playful punch in the arm "It feels good to have you around again."

"I feel the same way" DiNozzo smiled. "But I thought you said that nothing would drag you away from San Francisco and the Pacific. Yet, here you are living in the Nevada desert for more than 4 years. What changed your mind?"

Sara quickly glanced at the driver of the Tahoe before carefully replying "I don't know. It just happened."

"There must be some reason" Tony prodded further.

"Maybe there was a reason at some point. I don't know if it is there anymore," Sara replied with a tinge of sadness in her voice.

"Well, if that is the case, maybe I can finally convince you to come back to NCIS. We need someone to keep Gibbs on his toes."

Sara smirked at Tony "What makes you think that you can finally convince me?"

DiNozzo thought for a moment before grinning at her, "My charm?" He replied as he quirked his eyebrow at her.

Sara's laugh echoed in the car.

Grissom's hands gripped the steering wheel even tighter as he tried to control his emotions. This cannot be happening Grissom thought. What does this kid think he is doing? Sara is too good for this jerk. Grissom felt his throat constrict as he heard Sara giggle again.

He snuck a quick look into the rearview mirror. His heart clenched in his chest as he saw Sara truly happy for the first time in three years. Sadly, he was not the one who was providing that happiness. Deep down, he always knew that he wanted to be the guy who brought a smile to Sara Sidle's face every day, but, he wasn't that guy. And now it might really be too late for him to ever be that guy.

TBC… So tell me what you guys think, and as I have mentioned before I'm still debating if this will end up GSR (even though I feel like it most likely will be), so I'll take your opinions into account when writing future chapters. I hoped you enjoyed it and I would love a review… reviews are like warm towels out of the dryer for me… I love them!