Ok, I know I'm probably getting in WAY over my head, posting other stories before I finish the ones I've already started, but this would not leave me alone. I even wrote it and was going to wait until I finished my other stories but it just wouldn't leave me alone. :) and I know there are already a few stories out there like this, I just thought I would throw my two cents in and see how it did :)

Sara had finally managed to get some much-needed sleep. She had been working doubles all week and had crashed when she got home. It seemed like she had only been asleep for five minutes before the sound of two teenagers came floating into her bedroom. Although when she looked at the clock, she discovered she'd slept 9 hours. She hadn't slept that long in a while.

"Shhh! I think my mom is still asleep." She heard Abby say.

"Well, if she was, then she's not anymore, how can anyone sleep with all the noise your voice makes." Maddie, Abby's best friend, said back.

"Shut up!" Abby said, then Sara heard what sounded like Abby smacking Maddie's arm.

"OW! That hurt!" She heard another smacking noise and then Abby's yelp. She laughed a little bit when they started talking about a boy Abby was texting. She heard the noise her daughter's phone made when she got a text message. It was apparently the boy. She then heard Maddie try and get the phone from Abby, wanting to text him back pretending to be Abby. Looks like its time to get up, Sara thought. She climbed out of bed and walked into the living room to see both girls on the ground, Maddie trying to get the phone and Abby desperately trying to keep it from her.

"Who's winning?" Sara asked as she grabbed a bottle of water. The girls immediately jumped up, a sheepish look on both of their faces. Maddie then chose to strike and successfully grabbed the phone away from Abby.

"Me, now!" Madeleine said.

"Give it back!" Abby then pounced. The phone started ringing and it made both of them go still. Abby used this to her advantage and got the phone back. She then flipped it open.

"Hello?" she said into the receiver. "Oh hey Linds!"

Sara finished her water and came back into the living room.

"So what are you girls doing to night?" Sara asked.

"Going over to my dad's." Maddie answered. Sara tried to keep from smiling at the thought of Grissom, Maddie's father, watching two teenagers.

"Just you and Abbs?"

"Yeah, its just us now." Abby said hanging up the phone. "Lindsey was supposed to come too, but she's sick. Some stomach thing."

"Man that sucks!" Maddie said. "I hope she gets better soon."

"She shouldn't be sick for long. Her mother only had it for a few days." Sara said referring to when Catherine was out sick the week before.

"I hope she's not sick for long. The whole schools had that stupid thing." Maddie said.

"Yea. The only good thing about it is that so many kids are missing from school, we're not doing much in any of our classes!" Abby said.

"I know it's so cool!" Maddie agreed.

"Well, I need to get ready for work." Sara said, glancing at the clock.

"Ok. We'll just be watching TV." Abby said, as Sara headed back toward her room.

She was coming out of her bedroom, after getting ready for work. She paused to watch the two girls discuss something they were watching. She couldn't believe how different they looked. They both had similar qualities, though. They had both inherited Sara's curly brown hair, although Madeleine had died hers black. And they both had their father's blue eyes. The same blue eyes Sara had first fallen in love with. As far as Sara new the girls were completely clueless about their past. Abby had little to no memories of Grissom, and the ones she had were, from what Abby had told her, fuzzy at best. She wasn't sure about Maddie though. Having not really talked to her about it. She knew the fact that they were both born on the same day of the same year had thrilled both of them. They thought it was cool. No thought other than the fact that it was sheer coincidence had gone through their minds. Sara believed it had to do with the fact that other than their eyes and hair, they looked nothing alike. And now even the hair was different. If they weren't fraternal, then they might have realized their birthdays weren't such a coincidence.

She still remembered the day, sixteen years ago, when she told Grissom she was pregnant. He had been in San Francisco for a month long conference, that she was also attending. Neither one had intended for their relationship to go that far, but it did, and they had to suffer the consequences of their actions. Although Sara wouldn't, and she was sure Gil wouldn't either, call Abby or Maddie a consequence. They were the best thing that had happened to either one of them. They had both agreed to try and make their relationship work, but some where along the way things went south. Grissom had been unwilling to open up to her and she became frustrated with the fact the he seemed to think she didn't deserve him. She knew their age difference bothered him. But she had hoped he was willing to move past it. Eventually they realized they were both in over there heads, and decided that it would be best if they tried to move on. And to make sure one wasn't left struggling with two kids, they each got custody of one daughter. Sara and Abigail, and Grissom and Madeleine. Sara had discovered though, it was hard, even impossible to move on when you had some one around you every day who was so much like the person you were trying to forget. She and Grissom had kept in touch, and she had come to Vegas when he asked her to, and stayed because he asked her to. Neither had brought up the girls, and neither were particularly surprised when they became friends. They were so much alike. No one at work knew about them, well except Catherine, and even she didn't know they were related. She had been sworn to secrecy and wasn't breaking her promise. The girls never asked why no one knew about them, they seemed to understand how private their parents were and how they didn't want all the questions. Thinking about work brought Sara out of her revive and back into the real world.

"Well I'm off to work." She said as she made her way toward the door.

"Ok, we're going too." Abby said turning off the TV and following her mother.

"Have fun and Grissom's" Sara said, smiling, once again imagining Grissom with the two girls.

"We will." Maddie assured her. Something in the way she said it made Sara smile even more.

"Be nice to him ok?" She asked. "He's worked hard this week."

"Ugh! Ok." Maddie said, sounding defeated.

"You had to go and ruin all our fun!" Abby said, as they got into Maddie's car.

"You girls be careful now." Sara said.

"We will." both girls said in unison. Sara waited until they were gone to leave for work.

Sara walked into the break room to find Greg and Catherine already in there.

"Wow, you look much better than you did this morning." Greg said.

"Thanks," Sara said, sitting down, "I think."

"If Greg's saying it to you," Catherine said, putting down the magazine she had been reading, "it's a compliment."

Before any one could say anything, Nick and Warrick came walking through the door.

"Well, looks like its time to start." Catherine said.

"What about Grissom?" Greg said.

"It's his night off." Catherine said.

"So, that's never stopped him before." Nick said.

"Well apparently it is to night, since he called me to remind me he wouldn't be in." She smiled at Sara. Apparently the same thought was running through her mind that had been in Sara's earlier.

"Wow, the bossman is actually taking a night off." Greg said.

"Ok, can we get to work now?" Catherine said, and then proceeded to hand out assignments.

When Catherine and Sara got out to the car they were taking to the scene, they both started laughing.

"I still can't believe he's watching both of them." Catherine said.

"To think he could be watching all three." Sara said.

"Bet you fifty bucks he won't last five hours." Catherine said.

"He won't even last two." Sara countered. The women laughed again, and then headed off toward their scene.

Sure enough two hours later Sara's cell phone rang. She checked the ID and then chuckled as she flipped it open.

"Sidle." She said.

"Do teenagers EVER sleep?" Grissom asked.

"Of course they do," Sara said, she could hear Grissom relax on the other end, "during the day." She finished.

"UGH!"

Sara started laughing at his frustration. Catherine heard the noise and looked up. She looked at Sara, silently asking whom it was. She sighed when Sara gave her the universal money sign.

"Are you laughing at me?" He asked playfully.

"No," Sara said before she broke into another fit, this time because she could hear Abby and Maddie in the background.

She smiled when Catherine handed her fifty bucks.

"Sure you don't want some help?" Sara asked.

"They're just teenagers, they'll calm down eventually." He said.

"Did they have anything sugar related?" Sara asked.

"Well, yea, but-"

"I wouldn't plan on sleeping for a while. Look Griss, I'm working a scene…"

"Ok I'll let you go, thanks for helping." He said that last part sarcastically.

"No problem." She said then looked at her hand, which still held the money in it. "Oh, and thank you too."

"For what?" He asked.

"For making me fifty bucks richer."

"Huh?"

"Catherine bet you would last five hours with the girls. I bet you wouldn't last two."

"I'm glad you have so much faith in me." He said laughing.

"Its not so much you, I just know the girls."

"Whatever."

"Have fun," Sara smiled

"Yea, sure."

"Bye, Griss."

"Bye Sara."

Sara hung up the phone. She was glad their relationship was getting better. Things had been so rocky between them the past few years and it was nice to have the playfulness back.

"How bad did he screw up?" Catherine asked.

"He gave them sugar."

"He has a daughter, he should know better." Cath laughed. And with that they went back to work.

Abby and Maddie finally decided to let Grissom get some sleep, and they were now looking up things on Maddie's laptop.

"So you think what Lindsey said is true?" Abby asked.

"About my dad and your mom being in love with each other?" Maddie asked, back.

Abby nodded.

"I don't know, I mean her mom is a trained investigator, it's very possible that they could be. And its not like we can add any input. I don't think we've seen them talk face to face." Maddie answered.

"We haven't. Hey, wouldn't it be cool if they got married? Then we could be sisters!" Abby exclaimed.

"Well, first we might want to get them dating before we start talking about marriage."

"Good point. Hey that's a good idea."

"What?"

"We could try to get them together. You know, make my mom come over here to pick me up or drop me off sometimes, and the same with your dad."

"Abbs, I'm not sure about this, I mean they're adults. We shouldn't interfere with their personal lives, especially just for our own benefits."

"But if they're really in love then it would benefit them too, right?"

"Can we just drop it." Maddie said.

"FINE!" Abby said, sounding like it was anything but fine. "Well, to change the subject, wanna search our names on the Internet and see what comes up?"

"Sure."

Maddie then typed in both of their names in the Google search box and hit enter. A lot of different things came up, a few even about Sara and Grissom since the last name was on there. One entry was from a newsletter article dated around the time they were born. It seemed to be just an interoffice thing that some one had posted on the Internet. They clicked on the site and started reading.

"One of San Francisco's finest criminalists, Sara Sidle, is finally taking some time off for maternity leave, after giving birth to her two daughters."

"TWO!" They exclaimed at the same time, then remembering Grissom was still asleep lowered their voices.

"So, you have a sister." Maddie said. She looked up when Abby didn't say anything and noticed she was reading another part of the article.

"Abigail and Madeleine were both born on June fifth." It stated.

They both stared at the screen in shock. Of course they had noticed the similarities between them, and their birthday wasn't that hard to miss, but neither one had thought twice about it. The article went on to say how they weren't sure of the father's name, since Sara wasn't in the mood to discuss it, but they knew. He was in the next room, asleep.

"About that plan to get our parents together?" Maddie asked, loving the way 'our parents' sounded.

"Yea," Abby said.

"How exactly did you plan to do that?" Maddie asked with a mischievous smile on her face.

Abby's faced matched her twin sister's.