"Meredith..." Derek whispered in his sleep as he rolled over. What a strange dream, and why did he feel so weird? He shifted and something crinkled. Crinkled? Wait, were those crumbs he felt under his fingertips? He blinked, "Addison?" what was wrong with his voice? He reached for his wife but the bed was empty. Sitting up, he looked around, this wasn't the trailer...

"What the?" the place he was in was a stye. Clothes scattered about, stacks of magazines, pizza boxes. A large surgery textbook rested on the bed. He picked it up. But those weren't his hands, that wasn't his arm, and under that tank top, those weren't his... breasts?

Woozy, Derek stumbled to the bathroom... and almost fainted when he saw who stared back at him in the mirror. "Yang?" he said, feeling smooth skin where there should be stubble. "Okay..." something was definitely wrong. "Okay..." What the hell happened? He was on drugs... Or dreaming. The last thing he remembered was having sex with his wife. They'd shared a bottle of wine...talked... and then...

Something was really really wrong. He should get his blood tested. Or maybe just go back to sleep.

Then the phone rang. "Dammit," he muttered when he saw who it was. Meredith. Should he answer?

That would be... Very interesting. She wouldn't know it was him. He'd be her Person. She'd tell him Person stuff. She'd actually talk to him.

It rang again and he stared at it... If anyone could understand the situation she would. She was strange that way.

It rang again. He was about to answer when it stopped. A second later, it beeped, indicating she left a message.

He paced. Or she paced... Or... Whatever. God he was cold. Why was it so cold in here? He checked the thermostat, regular room temperature. Then he remembered something Addison said about metabolism and body hair. Figures, he thought as he looked down at Yang's petite figure. How was it that her feet were so small?

Focus Shepherd. What to do about this situation?

He decided the best thing to do would be to cancel his surgeries for the day and run tests. Maybe he had a tumor. Or Yang had a tumor... or-

He should also try and find himself, he thought wryly. If he was in Yang's body, then maybe Yang was in his?

Dear God.

He prayed this was a bad dream.

Maybe this was revenge... Addison could've slipped something into his drink. Or maybe it was bad wine. That was it probably. But first things first... he had to find clean scrubs. And probably a bra.

xxx

Meredith hung up the phone. Well, Meredith in Derek's body hung up the phone. "Weird, she didn't answer," she said to herself, or rather George.

"What do we do?" He asked.

She bent her head and rubbed the bridge of Mcdreamy's nose. "I don't know,"

"I feel like this is a really really really bad dream." George said, shaking his head slowly. "I'm gonna wake up any minute and- OW!" He bent over slightly, rubbing his stomach where Meredith poked him. "That... hurt. What did you do that for?"

Meredith shrugged. "Maybe we'd wake up?"

"Oh," he replied, straightening. He blinked, looked around the room, "Nope... we're not waking up." Then he stared, and it was weird, because Meredith didn't stare the way George did and she was watching herself do the George blink-and-stare.

"There has to be a perfectly logical explanation for this," Meredith muttered, pacing. "It's science. Science did this. It's gotta be."

"Or... we were abducted by aliens and they brain-swapped us." George replied flatly.

"Tequila," Meredith said. "Or Acid. Definitely LSD That's what this is. We were poisoned George." She nodded and pounded a fist into her palm. Mcdreamy's palm. Whatever, this sucked.

"I still think it's Aliens. Did you ever watch X-files?"

"X-what?"

"Damn."

She sighed. She wished she'd wake up too. She was in Derek's Freaking body! And why was she so damn hot? Her house was always room temperature and she felt she was running a fever. She pushed a dark bang out of her face. Hair. Had to be all the stupid Mcdreamy hair.

"Oh man..." George said, looking at the alarm clock that had fallen on the floor. "We are so late for rounds."

"You're late for rounds," Meredith grinned. "I am an attending." she smirked.

"Yeah? You ready for the corpus colostomy scheduled for this afternoon?"

She immediately deflated, "Crap."

But her thoughts were suddenly interrupted by a blood curdling scream down the hall. From George's room. The two of them rushed over and burst through the door.

George- who obviously wasn't George- stared back at them extremely agitated. "I-I-I- I'M A MAN?" He asked.

The real George (in Mer's body) looked at his body up and down. "Last time I checked, I was... except," and then he stared at the small rise in his (Mer's) chest. "This time?"

"Meredith?" George-not George asked, obviously confused.

"Oh," George in Mer's body pointed to Mer in Derek's body, "I'm not Meredith, she's- uh- he's Meredith."

"Shepherd?" George-not-George stared at Mcdreamy, who wasn't really Mcdreamy.

"Cristina?" Meredith realized. Somehow she just knew. Crap, crap... crap.

"Aliens, Meredith," George said from beside her. "Definitely Aliens."

A/N: So... to sum up, Meredith is in Derek's body. Derek is in Cristina's.

Cristina is in George's and George is in Meredith's. From this point on, When I say Meredith, imagine Mer in Der's body. When I say Derek, imagine him in Cristina's body, etc. I probably will still provide clues etc, but I just don't want people to be frazzled when they read this. So... Yeah. Anyway, that was fun, wasn't it?

Now, for something more Angsty check out Lost and Found, or my brand new story Gone Baby Gone. Read those and then come back and read this one again. LOL!