Like most of the ideas for my fanfics, this idea has been swimming around in my head for a long time. It's an unconvential pairing, but you'll see how everything plays out if you read it. Takes place in season 1 after the party in "Shake Your Groove Thing". AU, of course. Enjoy and please review whether you like it or not!

It was unnaturally sunny outside for Seattle. The bright light shone through the windows of the bedroom, and birds chirped away excitedly, glad to see the sun for once. Cristina raised her head off the pillow and covered her face with her hands. With the way her head was pounding, she felt as if her brain would suddenly explode out of it. Her hair was a mess and her makeup was smeared. The sheets lain over Cristina's body were cold, feeling amazing when compared to her hot, sweaty face.

That's when Cristina realized she was naked.

Cristina's mouth gaped open, and she cautiously moved her head to the side. The person with her in the bed couldn't him, could it? No. It couldn't be. This was impossible. Cristina shook her head vigorously. "No no no no no."

Cristina pulled up the sheet and looked to see if he was naked. Her brown eyes widened. Of course he was. Why did this have to happen? Last thing Cristina remembered, she'd been dancing on top of a table with him and Meredith, passing around various bottles of alcohol. Now suddenly they were here, in his bed, both of them naked.

Looking out the window, the Korean intern noticed that it was blindingly sunny outside. Today was just a strange day. Cristina had slept with the one person she never thought she would sleep with, and it was sunny in Seattle.

Cristina slowly climbed out of the bed and gathered her clothes, quickly throwing them on before exiting the room. She stopped walking when Izzie Stevens appeared in the hallway. The blonde's hair was pulled into a sloppy bun, and she was sipping from a dark blue coffee mug. "Hey, Cristina."

Izzie walked past Cristina, but she suddenly stopped and turned around. "Wait! That-that's George's room! Did you-oh God! Seriously?!"

"Shut up," said Cristina, almost running downstairs. Meredith stood beside the steps, her hair sticking up. "Cristina? You stayed here?"

Izzie ran down the stairs after Cristina. "She slept with George."

Meredith took Izzie's coffee from her and took a big gulp. She looked confused. "Why would you sleep in George's bed? You could have come slept with me."

Izzie snorted a laugh. Cristina glared at her. Izzie cleared her throat. "Um, Mer. I don't think Cristina wanted to sleep with you like she slept with George."

Meredith gasped and looked from Izzie to Cristina and back again. "Oh! You slept with George? Like, sex? Oh, Cristina. Seriously?"

"Shut up. Both of you," said Cristina. "I don't even remember how it happened. Do either of you remember anything?"

"Nope," said Izzie, while Meredith shook her head.

"Damn it." Cristina sighed and thought for a moment. "I'm going to leave. Hopefully George doesn't remember anything. You two need to promise me that you won't tell him about any of this."

Meredith and Izzie glanced at each other. Cristina held out her arms, waiting for them to say they wouldn't tell George. Meredith nodded. "Okay. We won't tell him."

"Yeah," said Izzie, also nodding.

"Thank you both," said Cristina, heading for the door. When she reached it, she turned to look at her fellow interns again. "And if I found out that either of you told him-"

"We won't!" said Meredith, smiling. "Goodbye, Cristina."

"Bye." Cristina disappeared out the front door and shut it behind her.

Izzie looked at Meredith, taking her coffee back. "Wow. Like, oh my god. Seriously. How did that even happen?"

Meredith shrugged. "I have no idea. I hope I never have to know, either. That's just so weird. George and Cristina."

Izzie and Meredith both shuddered. They turned when they heard someone coming downstairs. George was slowly descending the steps. His hair looked like he'd just been struck by lightning. He was wearing only a pair of gray sweatpants, and his eyes were red and watery. George couldn't even make it halfway down the steps. He sat down on one of the stairs. "What the hell happened last night?"

"Tequila," answered Meredith shortly.

"You look like you had a rough night," smiled Izzie. Meredith gave her an are-you-stupid look. Izzie shrugged.

"I feel like I had a rough night," said George. Izzie let out a small laugh. Meredith elbowed her in the ribs. Izzie placed a hand over her mouth to stop herself from bursting out in uncontrollable laughter.

George laid down on the steps, staring at the ceiling. "What's so funny, Izzie?"

"Nothing," said Izzie, trying immensely hard to hold in her laughter.

George used the banister to pull himself up to a standing position. "I need to take a shower. I smell like a brewery and a high school locker room at the same time. See you guys in about an hour."

"Yep," said Meredith. After she heard the bathroom door close, Meredith turned to give Izzie a look. "What is wrong with you? We have to pretend that nothing strange, weird, or out of the ordinary happened last night."

"I'm sorry." Izzie didn't bother to hold back her laughter anymore. She caught her breath and continued speaking. "It's just, something strange did happen last night. Something really strange. Cristina and George having sex. Like, seriously?"

"Izzie, Cristina will kill you, and then she'll kill me for not stopping you," said Meredith.

Izzie rolled her eyes. "Cristina won't kill us. She'll probably just hurt us so she can get in on a few surgeries."

Meredith shook her head. She stole Izzie's coffee mug and downed the rest of the coffee. Meredith handed the empty mug back to Izzie. Izzie looked in the mug. "Thanks for drinking all of my coffee, Mer."

"Welcome," smiled Meredith. "Am I going to have to keep you away from George?"

"No. I can stay quiet," said Izzie.

"You sure?"

"Yeah. Trust me."

Meredith examined Izzie for a moment, shook her head, and walked back to the kitchen. "If you say so."

Hope you enjoyed this story so far! Review, please!