A/N: Hey guys! Thank you so much for the awesome feedback on the last story :) This one I've had on my mind since I watched episode 13x07. For some reason I just think Greg would be great with kids and I thought it was a shame he and Eli didn't meet. So here's what I think would happen if they did ;) No spoilers!

Please Review and leave a prompt! :) xx

Summary – Greg talks to Eli about Warrick and Eli feels he's made a new friend.

Uncle Greg

Eli and Tina had come to visit Sara and Nick at the lab whilst they were on a lunch break. Tina had gone to the bathroom when Eli had wondered off and now she and Nick were looking for him. Nick asked Greg to keep an eye out and the younger man was just heading out when he spotted a small figure lying on the patch of grass just outside the lab. Greg gave a small smile as he wandered over to the little boy and looked down at him. He may only have been 5, but Eli looked rather deep in thought.

"Hey Eli, I'm a friend of your dad's. My names Greg" Greg explained to the child who squinted up at him. "Mind if I join you?"

Eli shrugged. "I guess not" he mumbled.

Greg lay down on the grass next to the little boy "What are you doing out here huh? Your mom's worried about you"

"Looking at the sky" the little boy replied "Mom says that's where my dad is"

"Well that's right" Greg said "He looks down on us all and protects us"

Eli rolled his head to look at Greg "You knew my dad?" he asked.

Greg also looked at the little boy "Yeah, he was one of my best friends" he said with a small smile.

"Like my Uncle Nick and Aunt Sara?"

"That's right. Your dad looked after me because he said I was like a little brother, and I looked up to him because he was my big brother."

"And he was really tall!" Eli said.

Greg laughed "Yeah that too"

"Well um, my mom said that my dad used science to catch bad guys. Do you do that too?" The inquisitive boy asked.

"Yeah I do, and you know what, your dad taught me a lot about how to be a good scientist." Greg proudly told Eli.

"Uh-huh, I always thought that my dad's job sounded like he was Batman" Eli said with an excited smile.

Greg laughed again "Yeah, he was Batman, and I guess you could say I was his Robin"

"That's so cool" Eli said with admiration in his voice. They were quiet for a while before Eli asked "Do you think my dad would have liked me?"

Greg smiled as he looked at the little boy who reminded him so much of Warrick "He would have loved you… in fact he still loves you and he always will" Eli smiled at this "You look so much like him, you know?" Greg said.

"My dad was handsome then" Eli said with a cheeky smile and Greg laughed.

"Must have been!" the CSI said "And you're smart like him too"

"Yeah, he was really smart" Eli said proudly.

"He was and he always knew what to do. Even now whenever I'm stuck I ask myself, what would Warrick do?" Greg explained "I still think about him a lot… and I talk to him sometimes too. As long as you do that, then he'll never really leave you"

"Does he think about me?" Eli asked.

"All the time" Greg replied reassuringly.

"My Uncle Nick told me a little about you" Eli said with a smile "He said you were really funny"

"Oh he did, did he?" Greg asked raising an eyebrow "Well I'll tell you this for nothing, I ain't funny, I'm down right crazy" he said and pulled a funny face which made Eli burst out laughing as he rolled about on the floor.

"You are funny!" the little boy exclaimed "Uncle Nick said that he you and my dad did funny stuff all the time!"

"Oh yeah, did he tell you about the time me and your dad caused an explosion using Soda and Mentos?"

Eli giggled "No"

"Well, we'd been trying to catch some bag guys who'd blown up a warehouse, and we wanted to try and copy without hurting anyone so we could work it out. Anyway I bought like twenty cans of soda and your dad had like fifty packets of these mints. We put them inside this model building we'd made out of Popsicle sticks, five seconds later… boom!" Greg motioned an explosion with his hands and Eli burst out laughing again. "We were soaked and our boss was so mad" he started to laugh at the memory too. Ecklie had ranted at him and Warrick for a good half an hour "And we had to clean up the whole lab. It was worth it though because we had fun together, we laughed so much"

"That does sound funny!" Eli exclaimed through his fit of giggles. "Do you have more funny stories?"

"Yeah, but most of them will have to wait til you're eighteen" Greg said with a smirk as he gave Eli's shoulder a light nudge.

Eli sighed as he got his laughter under control. He sat up and looked sceptically at the man beside him "Can I call you Uncle Greg?" the boy asked.

Greg smiled as he rolled onto his side and propped his head in his hand "Sure I'd like that. Can I call you squirt?" he joked.

Eli snickered and shrugged "Yeah I guess"

"So, are we pals?" Greg asked.

"Yeah! Just like you and my dad" Eli said and both little boy and CSI smiled.

"Anyway, I think we should get you back to your mom. She'll be worried."

"Okay. I'm hungry anyways"

Greg chuckled "Here" he said sitting up and pulling his wallet out his jacket pocket, he handed Eli five dollars "For some candy, don't say your Uncle Greg never does anything for you"

Eli looked wide eyed at the large amount of money to such a small boy "Cool! Thanks Uncle Greg you're the best!" he said taking the cash excitedly.

"I am aren't I" Greg said sounding pleased with himself, before leaning over and tickling Eli's ribcage playfully. The little boy giggled and squirmed around.

"Eli!" Someone suddenly called from behind them and Tina came running over followed by Nick "I was so worried! Don't wonder off like that again okay" she said sternly.

"Okay, I'm sorry mom" Eli said with an apologetic smile and Tina smiled back just relieved her son was alright.

"Don't worry Tina we've just been having a chat" Greg said smiling at the little boy.

"Yeah! Did you know how awesome my Uncle Greg was?" Eli said with admiration and the adults laughed.

"Did he tell you to say that?" Nick asked.

"Nope" Greg said proudly "and you're really awesome too Eli" he said and gave the boy a high five.

"Can we hang out again sometime so you can tell me more stories about my dad?" Eli asked hopefully.

"Sure, I'd love that" Greg said with a soft smile.

"We'll arrange it sometime" Tina said, happy her son had found a new friend. "Anyway we gotta go, you have school tomorrow mister" Eli groaned and the adults laughed.

"Okay, bye Uncle Nick" Eli said giving the Texan a hug "See you later Uncle Greg!" he said practically jumping on the young man to give him a hug.

"See you later squirt" Greg said as he ruffled the little boy's hair, and then Eli left with his mother.

"Well you two seemed to be getting on" Nick said with a smile as he sat down next to the younger man. "That's really great G"

"Well what can I say" Greg shrugged "kids just love me" he said with a smug grin and Nick laughed.

"It would appear so. Does it make you want to be a dad?" Nick asked.

"Nah, I'm way too immature for that" Greg replied.

"Really? Not even if it was with Morgan?" Nick teased.

The older man burst out laughing as Greg playfully pushed him to the side "Oh shut up you!"