Disclaimer: Do not own any Grey's and Gossip Girl stuff. Come on, I'm not that much of a creative genius.

A/N: So, So, SORRY for the long wait, folks! I had a word overdose and my creative brain had a seizure from all the plotting for the story haha. And when I wrote, I really hated it, so I had to do it over! But now, I'm here, and so is the gang! This chapter, along with two other chapters after this will be a part of The Grey's Anatomy Upper East Side Hangover Saga. So it'll be three parts of the evening with our favorite rich kids, along with the hangover, which you will all LOVE! I hope, haha. Enjoy the chapter!

Chapter 5: The Hangover Saga: Revelations

"So. You're going out with him." Cristina said, bouncing the ball from her left knee to her right and back. The girls were walking along Madison Avenue, to Cristina's townhouse. After the game, the 8 friends decided to split up: the girls at Cristina's, and the guys (with the exception of Mark) at Derek's. Meredith rolled her eyes.

"For the millionth time! I'm not going out with Derek! I'm going out with all of you. A night out with friends. Derek's my friend." Meredith said. Callie and Izzie laughed.

"You two were really getting friendly out there today." Callie observed and Izzie nodded.

"For once, I agree with her. I could feel the heat all the way in my goalie post!" Izzie added. Meredith snatched the ball away from Cristina.

"Thanks, guys. For all your help. Thanks." Her so-called friends snickered as they jaywalked along the very posh street. Meredith smiled at three old ladies that passed by them, who grimaced at the girls.

"Cover those legs, young ladies!" one of the women shouted as Cristina and the gang stalked past.

"Here we are. Home." Cristina rolled her eyes and pulled out a key under the mat.

"You shouldn't do that. You live in New York." Meredith said. Izzie and Callie laughed.

"Mer, who would steal anything around Madison Avenue? All the people around here are all billionaires!" Callie told her. Meredith rolled her eyes.

"Whatever. You still shouldn't do that." Meredith retorted as they entered the townhouse. Cristina headed straight to the stairs leading up to her room.

"I love her. She's like a Martian." Izzie joked as the three girls started to climb up the stairs.

"Hold it!" Cristina groaned and slowly turned around, followed by Izzie, Callie and Meredith. Meredith turned to see a small Korean lady in a hot pink 50's style John Galiano dress with a matching apron coming towards them carrying a tray of chocolate chip cookies.

"Cristina, don't be rude and say hello to your mother." Meredith gaped at Cristina, who grimaced as she glared at the smaller woman.

"Yes, mom." she said, no emotion in her voice.

"Isobel, Calliope! How great to see you! I saw you two in Alice Shepherd's debutante list next month, aren't you so excited?!" Cristina's mom squealed. Izzie and Callie smiled weakly.

"Debutantes?" Meredith mouthed. Izzie gave her a "shut up" look. Mama Yang rounded on Meredith. She put down the tray on a nearby coffee table and put her manicured fingers on Meredith's arm.

"You, are the spitting image of your mother, Ms. Grey. I'm surprised a girl like you are friends with my Cristina." Izzie and Callie snorted a laugh as Cristina rolled her eyes again.

"Mom!" Mama Yang sighed.

"Cristina, don't be rude! Anyway…. I'm sorry, Meredith. Ever since her father died, Cristina's been strange and rude." Meredith's eyes widened and Cristina cleared her throat. "Uh…. Mrs. …"

"Rubenstein. Karen Rubenstein. I'm remarried." Meredith nodded, then turned to Cristina who had her arms crossed.

"Mom. We're going out and we need to change. We were playing soccer all afternoon with the guys. Can you please just go away?" Cristina asked her. Meredith bit back a laugh as Mrs. Rubenstein's lips twitched. Then, she sighed and handed the tray to Meredith.

"Sometimes, I just wish Cristina would be out with a handsome boy like George O'Malley for something other than soccer." This time, Izzie and Callie could not control their laughter. The blonde and the brunette rolled with laughter as Cristina cussed, stamping up the stairs.

"Bye, Mrs. Rubenstein, nice to meet you!" Meredith said, following a giggling Izzie.

As soon as they got inside Crisitna's bedroom, Cristina fell back on her queen sized bed and sighed dramatically.

"She will be the death of me." Meredith sat down next to her as Callie and Izzie started arguing about who gets the shower in Cristina's personal bathroom and who gets the one downstairs, where Mrs. Rubenstein is. Meredith leaned back and laid next to Cristina, who was staring at the ceiling.

"I really hope you don't grow up to be your Mom." Revelation #1.

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"Addison, have you seen Meredith?" William Montgomery asked, entering the Montgomery Mansion's huge kitchen. Addison was sitting on a bar stool, eating her 8th piece of chocolate cake, a bottle of red wine next to her plate.

"Um… she went out. She's staying over Cristina Yang's, I think." she said, her tone a little slurred, the wine making her a bit tipsy. William nodded.

"Why aren't you two together? Did something happen today at school? Joe told me about your 3-hour shopping spree at Bergdorf's. And you only shop when you and Derek have a fight." William stated. Addison snapped her head up.

"Daddy. Derek and I broke up today." she said softly. William's face contorted.

"You've been together since Kindergarten. How can that happen?" Addison sighed as tears started to well up.

"I cheated on him, Daddy. And now he's in love with… someone else." William walked over to Addison and gave her a hug. She curled into his arms and wept for a moment.

"It'll be alright, sweetheart." he reassured her. Addison disagreed. It won't be alright for a while.

"I know, Daddy." she leaned up and kissed her father's cheek.

"Savvy and I are gonna have dinner at the Palace. She's staying there with Aunt Sally because they're renovating for the 3rd time this year. Don't wait up, okay?" William smiled.

"That's my Addie. Always getting me worried with your late night escapades. Ellis and I are on call tonight, but I just wanted to check up on you and Meredith." he said. Addison nodded and turned back to her plate, polishing off her slice.

"I'll see you, Daddy." William smiled and left the kitchen. As soon as he exited, Addison picked up her phone and dialed a familiar number.

"Hey, Sav. It's Addie. Are you still staying at the Presidential Penthouse? Okay, good. I need to get drunk, unless you have plans with Weiss tonight? Okay, great. Yeah, it's true. 5 hours, and he's already frolicking with my fake sister, which is the reason why I need to get drunk. I'll see you." Addison said. She shut her phone and turned around in her seat to open the refrigerator. She looked back at the cake dish. She polished off the dish in 30 minutes, a new record. She looked back at the refrigerator. Addison sighed as she took out the strawberry shortcake that the maid baked a few hours ago. She took it out and placed it on the kitchen table. After she polishes this set off, she's sure that she'll be spending a little time in the bathroom, throwing it all up. Not to mention, she still has her diet pills to take. Now that Meredith is in the picture, she'll need all the help she can get. Revelation #2.

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"So, if you're gonna do Grey tonight, you should definitely wear the 'do me' hair gel." Alex said, lighting up his joint as he sat on Derek's bed. George, Alex and Derek were all dressed and ready to go out with the girls and Mark, except Derek was still trying to figure out what hair gel to use for the occasion. George was still marveling at the thousands of hair products on Derek's dresser.

"Shut up, Karev. Meredith and I are friends." Derek said, picking up one of his hair gels and balancing it on his hands.

"Whatever dude. You looked like you were gonna eat her after she hit that goal." the junkie said, blowing some smoke rings in George's direction.

"Hell yeah. During the game too. You totally lost your focus when she smiled at you." George put in. Derek stuck his middle finger at them. His phone started to vibrate and he smiled, seeing the familiar number on the caller id.

"I'll be back. Karev, open the window and don't get any of the joint shit on the sheets. My mom smells everything." Derek said before leaving the room. He picked up his phone on the 3rd ring.

"Burke." there was a soft laughter on the other end.

"Shepherd." Preston Burke is Derek's other best friend. He and Derek met when their mothers took them to their first play date at 1 and a half years old. They've been brothers ever since.

"What's up, man? How was Africa?" Derek teased. He was one of the only people who knew where Preston really was this summer.

"Shut the fuck up, asshole. I just got back. I'm at Grand Central. Wanna go have a drink before I have to face Mama?" Preston questioned.

"I have a thing tonight. With Karev and O'Malley. We played a hot game and we're gonna have dinner at Serafina's. Maybe a few drinks at the Palace after? Karev's suite." Derek explained, hoping that Preston ignores his choice of restaurant. Wrong.

"Serafina's? You only go there with us. Or Addie, when she wants to eat like a pig. Are you with Addie or the guys? Can't be both. O'Malley hates her and Sloane loves you despite what you think of him, so he's staying as far away from her as possible." Derek sighed. Preston knew him too well.

"I'm going with the guys. But not Addie. I broke up with her today. I'm actually going with the guys and a few girls from the soccer team." Derek replied. There was a moment of silence before Preston spoke.

"Is Cristina gonna be there?" Derek looked down and cleared his throat.

"Yeah." More pause.

"Burke, are you okay?" Preston cleared his throat.

"How is she?" Preston's voice cracked a little.

"She's strong. She's not showing the pain she's feeling, if she's feeling it at all." Derek said, a little bitterness in his tone.

"How was rehab, Preston?" Revelation #3.

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"This is so not a pizzeria." Meredith stated as she looked around the very quiet surrounding of the Upper East Side pizza place. In a normal pizzeria in Seattle, it was avery loud and crowded area. Here in Madison Avenue, however, it was a dimly lit, quiet and romantic-themed. Culture shock?

"This is the rich people's version of a pizzeria, relax." Derek said, pouring another bottle of wine on her glass.

"Shepherd, stop getting me drunk." Meredith whined, laughing as Izzie almost tripped over her seat, heading to the restroom to get away from a very high and drunk Mark. The gang all met up in front of the restaurant and all ended up splitting up into three tables: Meredith and Derek in the far corner, Cristina, Alex, Izzie and Mark on the big party table in the middle of the room, and George and Callie on the opposite corner, arguing very loudly. Something about Izzie and disapproval. Derek continued to pour wine into her glass.

"You deserve it. You played a good game today." he said, smiling at her. She took a bite of her mushroom pizza. The cheese that was delivered from Tuscany and tomato sauce made in Rome melted in her mouth.

"This is really good pizza," she stated. Derek nodded.

"The best in the East Coast." he replied.

"So. Do you want to go out with me?" Meredith let out an exasperated sigh.

"Derek.."

"Meredith…" Meredith glared at him as he mocked her. She sipped her wine.

"Addie's my sister."

"Yes."

"And you dated her for 13 years."

"Yes."

"And now you're in love with me."

"Yes."

"What?"

"Huh?"

"You just admitted that you're in love with me!" Meredith giggled at Derek's expression.

"I'm drunk!" he argued.

"You're drinking Coke!"

"I'm drunk on you." Derek smirked.

"Get over yourself, already."

"Come on! Go out with me!" Meredith smiled at his little-boy whine. Very cute. And hot. God, she was drunk.

"It's the chase." Meredith told him.

"What?" Derek now looked confused. Very hot.

"The thrill of the chase. You know I'm forbidden. You know it's against the rules to date your ex-girlfriend's step sister. But you go for it anyway. It's the chase." Derek gave her a smile.

"It's fun isn't it?" Meredith was about to hit him when Cristina went up to them and dropped their coats on the table.

"Hey horny-heads. We're walking up to the Palace. Alex is hosting a drinking party!" Cristina announced, before walking back to her seat and throwing her credit card on the table. Alex did the same.

"I'm the head. You're the tail. Deal with it, Yang. Plus, it's not a drinking party. It's a contest. I demand a rematch. Shepherd got all fluttery by Grey, so it shouldn't count." Alex said. Cristina glared at him.

"You're on!"

"I didn't get fluttery!" Derek exclaimed. Meredith patted his cheek.

"You fluttered, deal with it." Derek took her hand from his cheek and kissed the back of it.

"Wanna make me flutter again?"

Well, there it is... Part I... hope you guys liked it! Please review, and once again, So sorry for the delay! Part II will be up as soon as possible, I promise! As always, I'm begging for some reviews! Up Next: Addison and Preston join the party, Mark professes his love (or lust) and Derek and Meredith? Well, you'll see.