Disclaimer: I don't own Buffy or CSI they belong to their respective creators and networks.

Pairings: Nick/Greg, Andrew/Warrick, Eventual Faith/Sofia, Eventual Catherine/Giles.

A/N: Part of this was written by Jake456. Just thought any readers should know that.

Prologue

The survivors of Sunnydale had just pulled up in front of the Hyperion Hotel after stopping and dropping off the more severely injured at the hospital. The Scooby gang, Andrew, Faith and the Fang gang all talked about what they should do now. Well the Scooby and Fang gangs did, Faith and Andrew were both deep in thought about how either of them could rejoin society with their criminal records. Faith knew her record was more likely to cause problems then Andrew's because hers were here in LA, while Andrew's were somewhere in the crater known as Sunnydale.

That night both Faith and Andrew had a dream instructing them to go see the Oracles. Then next day Faith pulled Angel off to the side where Andrew was standing and asked, "Fang how do we get in to see the Oracles?"

The Broody Vampire asked, "Why?"

"Dreams."

Angel nodded his head before leading the two out of the hotel and to the Oracles.

Once there the Female Oracle spoke, "Sending you both back to prison is not what we want. So any records or memories of the crimes you committed will be erased from the minds of all but your fellow champions. But not things you may have done while incarcerated."

Faith spoke up, "When you say our fellow champions you mean B and her friends and Fang and his group? As for the thing we did, what like me getting my GED?"

"Yes, we speak of the Souled Vampire and the Golden Slayer. And yes."

With that Faith and Andrew were dismissed. The two headed to a diner not that far from the hotel and talked.

Faith asked, "What are you going to do now?"

Andrew replied, "I'm thinking of going back to school. What about you?"

"Something similar hey, want to go to Vegas?"

"Sure."

With that said the two got some money from Angel and then got on the first bus out of LA that was heading for Vegas.

It had be two months since the two friends left LA and entered Vegas, where Andrew enrolled into the University and majored in forensics, while Faith enjoying the irony headed to the police academy.

The instructors at both the academy and the University were shocked as their newest recruits breezed through the courses. All the instructors couldn't help thinking these two would finish their courses in half the time most other have.

It was a couple of years later after Faith left the academy at the top of her class as Andrew headed to working in the labs as a tech.

Tonight happened to be Faith's first case as a Detective. The former Dark Slayer started to talk with some of the witnesses when one of the Crime Lab issued Tahoe's pulled up. Faith looked up momentarily her eyebrows went up as a in her mind gorgeous blonde bombshell climbed out of the driver's seat. Faith then noticed her little 'brother' Andrew climb out the other side.

After calling over a uniform to finish taking statements, Faith headed over to the CSIs that had just shown up. She greeted them with, "Hey Andy. CSI…"

Sofia looked over at the new detective thinking two things that Detective Lehane was beautiful and also came across as arrogant. "Curtis, Sofia Curtis. So Det. Lehane what happened here?"

Andrew looked over at his mentor for the evening as his best friend/big sister spoke. He decided just to wave before following the two women. He listened as Faith explained everything that she noticed and was told by witnesses and first responders.

Faith led the two CSIs to the body saying, "No one's touched anything outside of checking for a pulse."

Sofia replied, "Thank you Detective," as she got to work processing the scene. Faith sensing a dismissal nodded her head before leaving the room to let the two CSIs work.

The case ended with the spouse doing it and was pretty much an open and shut case.

Months had pasted since Faith's first case as a detective. She watched as her little brother started to get more serious with one of the other CSI's. She knew he had been seeing or flirting with this Warrick Brown for at least a month before she had qualified for her shield.

Over the last months Faith found herself drawn to CSI Curtis, Faith realized that the blonde CSI seemed to think she was conceited. So tonight being her night off, Faith decided to go clubbing to blow off some steam and maybe even get laid.

On the other side of the city, Sofia also had the night off. She decided to try and get the annoyingly good looking Detective Lehane out of her head by going out and dancing.

Upon entering the club, Faith scanned the room for anyone that would catch her interest for the night. Of course it turned out to be just her luck that the object of her thoughts was here when she was. Muttering to herself, "shit. Really?"

Oblivious to the detective's thoughts, Sofia was dancing to the beat of the song with her eyes closed. The blonde CSI was so enthralled with the music she didn't feel as someone slide up to dance behind her.

Faith watched as the blonde danced in her own world before deciding to just get the scientist out of her system. The Dark Slayer slide up behind the blonde, her hands lightly grazed Sofia's hips as the two fell into a rhythm.

Sofia tensed up at the light graze on her hips before relaxing into the rather feminine body behind her. About half way through the song, she spun around and wrapped her arms around her partner's neck. Opening her eyes, Sofia found herself staring into the very dark eyes of one Detective Lehane.

The two danced with such passion that they ended up gaining an audience. As the song came to a close, Faith basically ripped herself away from her blonde co-worker. Stalking to the bar, the Dark Slayer didn't notice as Sofia following her.

Sofia caught up with Faith at the bar. She spun the brunette detective around grabbing Faith by the back of her neck before pulling her into a deep kiss. The blonde was a little shocked that she let her hormones control her actions but the brunette wasn't helping at all by kissing back with just as much passion as she sees the detective use when working a case.

Faith was shocked when she was spun around. Over the past years, Faith had worked with her sensing ability and her reflexes. So finding herself spun around and kissed shocked the Dark Slayer. Faith ignored the bartender as he put her drink on the bar in favor of pulling her blonde co-worker flush into her body. As the two pulled apart for air, Faith fished out a twenty and paid for her drink before picking it up and downing it in one shot.

Sofia was breathing deeply as she watched Faith down her drink. The two had a few more drinks before heading back out on the floor. They danced while fighting the growing tension and desire. After a few hours, Sofia was nice and tipsy. She even started to forget why she didn't get along with Faith while at work.

The two had caught a cab and spent hours exploring one another before passing out. The next morning found Faith in her bed while her partner of the night banged around trying to escape. The Dark Slayer caught a glimpse of long blonde hair as Sofia rushed out the door. Faith muttered, "Fuck," as she flopped back on to her bed.

About a month or two later, Faith found herself with a new partner in Sofia, who decided to finish the qualifications for her shield. Both Det. Lehane and Curtis were sent to a breaking and entering. Sofia glanced over at the brunette waiting to see if Faith would make some sort of crude remark about their night together or that she just couldn't get enough of the brunette that she had to jump to detective to be around her more. So the fact that Lehane didn't say anything outside of asking for the address confused the former CSI.

Faith sighed, "Do you need something Det. Curtis?" Faith was fighting herself not to jump the blonde when she found out they'd be working much more closely than before. The Dark Slayer couldn't help but be confused as to why sleeping with the blonde didn't help resolve her attraction to the new detective. Faith was used to once doing something it would, then be out of her system but that wasn't the case with Sofia and it was bothering her.

Sofia studied the brunette before replying, "No Lehane, I don't." She then turned away confused why she felt hurt by the formality of their conversation.

"Good, then we can get this case solved and my little brother can become a full fledge CSI."

The two exited the car and spoke with the uniforms, witnesses, bystanders, and the owner before the Tahoe rolled up and Sara Sidle and Andrew climbed out.

Sara turned to Andrew, "Now remember your lead so this is your show."

Andrew replied, "Got it." The two CSI walked over to the two detectives before heading into the crime scene. The two collected their evidence and headed back to the lab to analogize it.

The case was quick as any open and shut case could be. Andrew found himself promoted to CSI from lab tech.

Andrew looked at the tall dark man who had somehow brought him out his shell he hadn't wanted to fall in love with anyone again ever but Warrick Brown did bring him out his little safe world and Warrick was so patient with me Andrew thought every time I pulled away he pulled back towards him.

Warrick's eyes took in his little geek the guy was just so cute he had made CSI so fast it wasn't even fucking funny. Saunders was still fuming about it on how quickly Andrew made it but Andrew worked his little ass and Warrick thought bad don't think about Andrew's ass yet he had only convinced the boy he was flirting after a month and than six months of nothing but hand holding and kisses.

Warrick is not Warren Andrew told himself. Warrick won't hurt me he looked Warrick over and thought when did he fall for him he wanted to give Warrick what all boyfriends did for their men they were boyfriends right? Warrick has been super patient with me.

As they ate dessert Andrew gulped he wanted this yeah Andrew wanted his chocolate lover to be with him yeah he did he knew he and thought oh Warrick's looking at me he has really pretty eyes no focus and stared back at Warrick.

"Baby," Warrick said, "you've been a bit quiet and usually you're chattering away like a little squirrel something wrong?"

"No," Andrew squeaked, "but umm War I want you tonight to be umm with me tonight I'm ready."

Warrick whispered, "you sure baby if you aren't ready I can wait."

"Want my chocolate lover," Andrew grumbled and shyly put his hand on Warrick's knee

"Chocolate lover," Warrick chuckled at Andrew's words and said, "if I'm your chocolate man you're my vanilla Ice cream geek."

Andrew stared, "vanilla ice cream geek?"

"Cause," Warrick whispered into Andrew's ear, "you're so sweet gonna lick you all over tonight."

"Oh," Andrew squeaked out and raised his hand and yelled, "check please!"

The ride to Warrick's place was shorter than Andrew expected when they got out Warrick grabbed Andrew and carried him into the house Andrew made a mock struggle but gave in and nuzzled Warrick and Warrick grinned as he claimed

Andrew's mind was on overdrive his hormones surged as Warrick did to what he called his thing after he felt Warrick leave his body he looked at Warrick and said, "that was wow that was just wow umm can't speak too well right now or think."

Warrick wiped a bit of sweat from Andrew and said, "Sweets it was everything I wanted our first time to be like."

Andrew snuggled to Warrick his head resting on Warrick's chest and muttered, "love you Warrick really do."

"Shit I know," Warrick said as he held Andrew close to him and caressed Andrew's pale skin and whispered, "got a secret vanilla man love you too," and kissed Andrew's pink lips with his own.

A week later Faith and Andrew both had the night off. The two siblings as far as they were concerned got together and just hang out. The two hadn't really had that much time with Andrew's job, Faith's job, Andrew's boyfriend, and Faith's confusion. So tonight the two decided to just talk and maybe her little brother could help straighten out her head for her.

Faith spoke, "Hey Andy boy, how're you doing?"

Andrew replied, "Hey Fay, I'm good how about yourself?"

"I'm conflicted."

"Why?"

The Dark Slayer groaned, "Det. Curtis."

Andrew grinned, "Oh, so your blonde obsession huh?"

Faith glared at the boy saying, "I'm not obsessed."

"Uh-huh, so you don't want her like I have my chocolate lover?"

Faith grinned, "Wait… wait… wait your chocolate lover? What does he call you?"

Andrew blushed, "his vanilla ice cream geek. But this isn't about me it's about you and your blonde obsession."

Faith sighed, "Andy I think I like her more than just as a roll in the hay. But we're co-workers, and not just working different shifts either, no Sofia and I are partners more often than not."

Andrew studied his big sister before saying, "Faith, I personally think you should go for it."

"Why? Didn't she hate me for being conceited?"

"No, Faith I don't think that she hated you. I think the attraction was both ways from the get go but with you both having explosive personalities well, there was only two ways it could have gone. It just took awhile for the second way to kick in."

The two chatted for a while longer before both headed to their respective homes not knowing that a blast from the past was going to be heading their way.

please review.

tbc.