Disclaimer: Unfortunately I don't own CSI, I just steal the characters in the middle of the night, play with them, and put them back hoping no one noticed

Disclaimer: Unfortunately I don't own CSI, I just steal the characters in the middle of the night, play with them, and put them back hoping no one noticed. I didn't do it, nobody saw me do it, you can't prove anything. Also, I own nothing so suing me would get you a court ordered part of that nothing. And for the record I don't own the concept of April Fools Day either, though I'm sure you already knew that.

Spoilers: Bodies in Motion (E1:S6) and The Finger a bit further in (E14:S2)

Warnings: Femmeslash, get over it. Also, there's one original character, so don't get your knickers in a twist when you have no idea who Kym is. She's really not important, but for the record she's a cop.

A/N: I meant to post this yesterday but I ran out of time. This story has been floating round in my head for ages (the general idea of it anyway) and I just had to write it down. Stupid thing wouldn't leave me along. The first draft was seriously dodgy so I'd like to thank Jess, my absolutely awesome beta, for pointing out the huge giant mistakes in the plot, and helping me fix the little things as well. Hope you enjoy it; now—read on.

Chapter 1:

Catherine looked up at the knock to see Sara Sidle standing in the doorway looking nervous, but determined. "Something I can help you with?" Catherine questioned.

"I have a proposition for you" Sara stated firmly, stepping into her office.

"Oh?" Catherine was intrigued now, even more so when Sara closed her office door.

"April Fools Day is coming up" Sara started, "do you recall what happened last year?"

Catherine pursed her lips, of course she did. "The boys got one over on us good and proper" she replied remembering with annoyance the revelation a year ago when Warrick had declared, a grin across his face, 'April Fools Day' and took his wedding band off and dropped it on the table. She had been trying to think up away to get him back ever since.

"Exactly" Sara nodded. "I was thinking we could pair up to get revenge. They won't suspect we'd be working together" Sara offered a feral smile and Catherine felt a grin spreading across her face.

"Devious Sidle, do you have any ideas?" truthfully Catherine was surprised, she hadn't expected Sara to bother with something as juvenile as April Fools Day, but if it helped her get revenge on the guys she was happy to go along with it.

"One" Sara shifted uncomfortably, putting her hands in her pockets and squaring her shoulders.

"Care to share?" Catherine prompted her.

"Something Greg said…" Sara started avoiding Catherine's eyes momentarily before seemingly changing her mind and locking their gazes, "We pretend to be a couple"

Catherine's eyebrows shot up towards her hairline as her eyes widened and her jaw dropped. She had often admired Sara's figure, she was a tasty piece of eye candy there was no doubt about it, but her appreciation had never been serious. She had known it wouldn't go anywhere. Sara was straight as an arrow and, she had a feeling, not to comfortable with gay relationships. She had always seemed too uptight.

Sara's eyes glittered as she watched Catherine's stunned reaction. She had hoped for something like this, now as long as Catherine didn't laugh her out her office or accuse her of trying to get her leg over everything would be fine. The blonde was beautiful, she had eyes in her head, but she wasn't attracted to her. She was too obvious.

"Well…that was the last thing I expected you to say" Catherine confessed.

"You think I'm too uptight?" Sara smirked.

"You know we're going to have to make it believable" Catherine ignored the question. "You think you can do that?"

Sara smirked, shrugging herself off the wall she had been leaning against she crossed the room towards Catherine, skirting around the desk and coming to rest against it right in front of Catherine. "I think I can do that" she confirmed.

A cocky smirk crossed Catherine's face as she realised that, momentarily, she would have what almost the rest of the lab wanted; Sara Sidle. "You're on" she agreed, extending her hand towards Sara to shake on it.

The brunette grinned as her fingers closed around Catherine's hand. "Great, you can buy breakfast while we talk logistics"

"I'm buying?" Catherine asked affronted.

"I came up with the idea" Sara shrugged, turning around to scribble an address down. "I'll see you there after shift—babe" and then she was gone.

Hope you enjoyed and you know what I'd love to see. Some reviews pretty pretty please. Cheers guys.