A/N: Thanks for the reviews. I am also surprised that more people have not written about Catherine finding out about Gris and Sara. It took me a while to get over the denial that TPTB had actually gone there. Hope you like the next chapter.

Chapter 2

Catherine Willows approached the layout room. Sara was supposed to be in there laying all of the blood evidence out from the wood chipper murder. There wasn't much, but they had been able to gather a few pieces of the victim here and there. She just hoped there might be some trace evidence on him that she could use. As she neared the room, she could hear Sara's low voice talking, and since she only heard one voice she assumed that she was on the phone.

"Yeah, we got all the pieces that we could find. There are a few pieces of clothing, so maybe we can find some trace. Yeah, I've already sent samples to DNA. Will I see you after shift?... So you aren't working a double again? The world must be coming to an end… Yeah, I will. I have my key. See you soon," Sara said, oblivious that Catherine was standing behind her smiling like a Cheshire cat.

"Who was that?" Catherine asked, as Sara practically jumped out of her skin.

Sara smiled and replied, "Nobody."

"Well, he must be somebody, if you have his key and if you are talking evidence with him, he must work at the lab," Catherine surmised, joining Sara at the table covered in tiny body parts.

"Uhm, we have twenty-two pieces and I have sent a sample to DNA already. I figured that we could take a sample from each piece to trace," Sara said, changing the subject.

Catherine looked at the evidence lying on the table. Could it be Nick? Not on the table, but on the phone?

"Have you already photographed the pieces?" Catherine asked, still smiling, her hands on her hips.

"Yes, I have, and I figured we could divide the samples up and have them to trace by the end of shift," Sara replied, making a point not to look at Catherine. She knew that if she did, Catherine would know who was on the phone and Grissom had made it perfectly clear that he was not ready for anyone at the lab to find out.

"If you have somewhere that you need to be, I can do this," Catherine offered. "Lindsey is staying at a friend's house, so I don't mind the overtime."

"You sure you don't mind? I would like to go home and get cleaned up," Sara said, surprised by Catherine's offer.

"Yeah, go ahead. There's no reason that one of us shouldn't have a social life," Catherine said, pulling her long strawberry blonde hair out of the collar of her lab coat.

"Thanks, Cath," Sara said, slipping off her own lab coat. She was pleasantly surprised by Catherine's generosity. "Have a good night."

"I will. I love puzzles," Catherine said over her shoulder and just as Sara left the room she added, "Say hi to Nicky for me."

Catherine smiled and went back to the evidence making a mental not to herself to grill Nick the next time she saw him.

Five hours later, Catherine dropped the last of the wood chipper evidence off at trace and headed for the locker room. It had been a long shift and she was looking forward to a shower. Catherine walked into the room and saw Nick sitting on the bench tying his boots.

"Hey, Nicky. What are you doing here? I thought you had the next couple of days off," Catherine said, opening her locker and taking out her jean jacket.

"Got called in about 6am. First shift needed an extra hand on a multiple drive by," Nick said, unenthusiastically.

"Spoiled big plans?" Catherine asked, wearing the same Cheshire smile that she had had on her face earlier.

"Yeah, I was actually going to fly home for a couple of days. I was driving to the airport when I got the call," he answered. "I've got another flight this afternoon. Hopefully, I'll make this one."

Catherine was confused. If Nicky had been planning on going home, he couldn't have been the one that Sara had been talking to on the phone.

"See you later, Cath,' Nicky said, walking toward the door.

"Yeah," Catherine replied automatically.

Catherine just stared into her locker for a minute. Normally she wouldn't care who Sara was seeing, but the fact that it was someone from the lab had her intrigued. It couldn't be Hodges,that was just wrong…Greg? She thought about it. Greg and Sara were good friends and he had had a crush on her for years, but he really wasn't her type. Her type was….No…No…It couldn't be, she thought. He wouldn't do that. He wouldn't risk his career. Would he?

Sara rolled over in the bed and looked at the clock. It was 3 in the afternoon on a Saturday and she didn't have to be in for another few hours. Neither did the man lying beside her. She debated on whether to tell him about Catherine's suspicions. She didn't want him to start second guessing his decision to be with her, but she also didn't want Catherine blindsiding him with questions. But Catherine really didn't know who had been on the other end of that conversation? For all she knew it could have been anyone in the lab…Nick…Greg…Hodges…No, Sara thought…not Hodges, even Catherine knew her better than that. She let out a chuckle and lay on her back.

"What was that for?" Gil said, propping one eye open to look at her.

"Nothing," Sara said, rolling toward him and caressing his arm with her fingers.

"You laughed," he stated, gradually opening the other eye.

"You remember when you called me last night?" she asked and he shook his head. "Well, Catherine overheard me talking..."

Grissom didn't even let her finish. He said up in the bed and looked at her in horror.

"Don't tell me, you told her," he said accusatorially.

"I didn't tell her anything. I changed the subject," Sara defended.

A relieved look came over his face and Grissom laid back down in the bed.

"Someone is going to find out eventually," Sara said, laying her head on his bare chest. "Don't you think we should tell them before they find out?"

"You won't be able to work with me anymore," he reasoned.

"I could move to day shift," she replied. "I think Mara wants to move to graveyard anyway."

"I just need some time, Sara," he said, moving his arm so that she would lift her head off him, he got out of the bed and for the first time since they had started sleeping together he felt self-conscious about being naked as he walked to the bathroom.

Sara laid there and looked at the ceiling. Was he ashamed of her? Or was he just protecting their careers? She had a feeling that she was about to find out as she stared at the bathroom door and heard the shower start.