A/N: Sorry for the late update, but we had to completely restart the computer again. I had the chapter finished, but I lost my files during the time the computer went terribly wrong. If it isn't the best, I'm sorry, I tried to make it like I did before, but I don't think it turned out as well, but I tried my best. Please R & R..

Summary: Completely AU. One lawyer, one baker, one science professor, one real estate agent, one architect, and now one upcoming fashion designer. Drama is bound to catch up to them. (not all of the characters will be in it) McStizzie, Mer/Der, future Addex

Disclaimer: I do not own Grey's Anatomy, or any movie, song, show, book, etc. mentioned in this fic.

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Izzie stared up at the ceiling. The darkness surrounded her as she closed her eyes. She had tried since she laid down on her bed, to sleep. Opening her eyes, she looked over at her clock. It read to be two o'clock. Obviously not the afternoon. She wanted to sleep, though she could since it was her day off, it was Christmas Eve, the day before Christmas Day, and since it was the holiday, she didn't want to sleep in all day, or afternoon. There were things to be done.

With a sigh, she decided that going to see Mark and lay with him. If she wasn't going to sleep, she mine as well do it with him. Bringing her legs over the side of the bed, she stood up. She walked with sleep filled eyes to put on her sneakers, knowing how cold she would be once she stepped outside, and then she put on her pink, fluffy robe. She wasn't sure when she brought it in her room, but she was glad she did.

She opened her door and proceeded down the stairs, and through the front door, as well as closing it behind her. She made her way into Mark and Alex's place, closing the door behind her, she walked up the stairs and to Mark's room.

Mark looked through tired eyes at the woman who was gently opening and closing his door as she came in.

Izzie met her tired eyes with his. "I couldn't sleep."

Mark smiled tiredly. "Me either."

Izzie took off her shoes and robe before making her way to where Mark was on his bed. She smiled at him softly as he moved over to give her room. She brought herself under the covers and laid atop his chest.

Mark leaned down and nuzzled his nose in her hair, closing his eyes and taking in her scent, he spoke. "Goodnight."

Izzie sighed in content. "Goodnight."

Soon enough, they both fell asleep.

XXXXXXX

Mark woke up to a squealing Izzie eight hours later.

"Morning." Mark said, a small smile playing upon his lips.

"Morning." Izzie replied smiling. She moved to straddle his waist. "Remember, you and Alex have to put the tree up today."

Mark couldn't help but smile back at her. He chuckled. "How could I forget?"

Izzie put her hands on his chest, leaned down, and kissed him.

The tree that they had to put up was one they had to put together. During their first Christmas when they moved into their homes, they had a real tree, but it ended up smelling like pine for a week, and pieces of the tree had been left there after they had took the tree out after the holiday, so they bought a fake tree that reached to the ceiling once it was put together, and looked quite real.

"I love the way you greet me in the mornings." Mark said smirking as he cupped one of her cheeks in his hand and kissed her thoroughly.

Once the kiss ended, Izzie smiled and pecked him on the lips. "I'm glad." She kissed him. "I love you."

"Someone is definitely happy this morning." Mark chuckled as she tugged up at his shirt.

Izzie leaned up and kissed him. "I am so happy this morning."

Mark helped her by taking off his shirt. "I can tell." He knew her happiness increased whenever the holidays were around, but then again, this was their first holiday together as a couple. Obviously, this happiness he has never experienced.

Izzie smiled at him.

Mark hold his hands on her waist, keeping her legs around him as he sat up. He kissed her. "I love you too." He responded from when she told him she loved him.

Izzie put her arms around his neck and kissed him. "I have to go over to my place."

Mark smirked. "Then go."

"I don't want to." Izzie told him smiling.

Mark shook his head. "Decide now or I'll have to."

She kissed him. "You decide."

"I guess you'll be going to your place then." Mark replied, containing a smile.

Her face fell. "Seriously?"

Mark started to smile. "No." He tightened his grip around her waist and brought her closer. "I don't want to share."

She titled her head. "You're going to have to though."

He kissed her. "Not yet."

"I'm okay with not yet." Izzie said against his lips as they kissed again.

XXXXXXX

"Hey." Derek said to Meredith as he entered the kitchen to see her standing up with a cup of coffee in her hands.

"Hey." Meredith responded.

"Where's Izzie? She's usually already up." Derek said. "But then again, she could be over at Mark and Alex's to wake them up like she did last year." He chuckled to himself.

A small smile appeared on Meredith's lips. "Seriously."

Derek smile. "Seriously. She's very into the holidays." He paused. "How about you? Are you into the holidays?" He asked curiously.

Meredith shrugged. "Not really. I never had much of a Christmas. My mother always worked."

"Did you and Lexie ever do anything while she wasn't there?" Derek asked, remembering her talking about her sister.

"When we were younger, we made each other gifts. During high school was the first time we got money from jobs, so we could buy something for each other." Meredith informed him.

"As long as you have family, that's all that matters." Derek said stepping closer to her.

"Seeing as how I don't like constituting my mother as actual family, you're completely right." Meredith cracked a smile.

Derek smiled. "I'm not asking you for permission."

Meredith furrowed her eyebrows. "Permission to what?"

Derek took her cup off coffee out of her hands and put it on the island counter. "To kiss you." He gave her his 'McDreamy' smile before softly kissing her.

Meredith was surprised, and was about to kiss back when he pulled away.

"Think of that as a pre-Christmas Day gift." Derek said, giving her another smile as he made his way to the coffee pot to get himself a cup of coffee.

Meredith followed him with her eyes, a smile across her face. Maybe this year Christmas wouldn't be so bad.

XXXXXXX

Alex was pouring coffee into a mug when Addison walked into the kitchen. "Hey." He said glancing over his shoulder to look at her.

"Hey." Addison replied.

"Want some coffee?" He asked, turning around with the mug in his hands.

Addison shook her head. "No thanks. I'm heading over to the hospital. Just wanted to stop by and see everyone. I don't think I'll be seeing you guys later." She told him honestly.

Alex gave her a small smile and sipped his mug of coffee. "You spending the day with your parents?"

"It'll be more like me switching rooms every hour, but yeah." She nodded with a soft smile playing on her lips. "I'm just glad I'll be able to spend time with both of them today though. And tomorrow." She added.

Alex put down his mug on the counter. "So you're going to be heading over to the hospital soon?"

"Just after I see everyone. Being that it's the day before Christmas day and all." Addison replied as she walked over to where he was.

Alex smiled a bit and nodded.

"I think I'm going to head over to Izzie's." Addison told him.

"Okay. Well…" He shifted on his feet before coming closer to her and pulling her into a hug.

Addison was surprised, but hugged back.

Once they pulled away, Alex felt a bit uncomfortable. "I'll talk to you later."

Addison nodded, a small smile on her face. "I will definitely talk to you later." She was walking out of the kitchen when she spotted Izzie coming down the stairs. "Hey."

Izzie stopped at the bottom of the stairs, her eyebrows risen. "Hi. What are you doing over here?"

"I could ask you the same thing." She smirked. "I wanted to see everyone before I went to the hospital." She explained.

Izzie nodded. "Right." She smiled. "I was just, you know…" Her voice drifted off, pointing to the stairs.

Addison smirked. "You woke Mark up?"

Izzie nodded vigorously. "Yes! That's exactly what I did!"

Just then, Mark walked down the stairs to see Addison and Izzie talking to each other.

Addison looked over at him. "Again?" She raised an eyebrow. "Didn't you learn from all those years about her waking you up?"

Mark cracked a smile and chuckled, with a shake of his head.

"I wanted to say bye before I go to the hospital." Addison told him. She looked at Izzie. "Why Christmas Eve? I never understood why you always woke him, and sometimes Alex, up on Christmas Eve. It makes more sense for Christmas Day."

"The tree." Izzie said simply.

Addison smiled amusedly. "Right…" She gave Izzie a short hug. "I'm going to go say bye to Meredith and Derek. Hopefully their clothes will actually be on."

XXXXXXX

Addison had left for the hospital. Alex had received two texts from her. He and Mark had put up the tree, and now it was two that afternoon, and they were in the living room, putting the decorations on the tree.

Izzie smiled as she put up a red, spherical ornament, which had some swirls with sparkles. She loved Christmas. It was obvious with the way her eyes twinkled up at the almost all decorated tree in front of her. A twinkle of pure joy in the name of Christmas, and it was her and Mark's first holiday. Well, second, seeing as how they were together during Thanksgiving.

As they finished up the decorations and lights on the tree, followed by Alex doing the honors of putting the angel on top of the tree, Meredith glanced at them. "I'll be right back. I'm going to call my sister." And with that, she walked out of the room.

Derek watched her walk out with a soft smile playing on his lips.

"I love Christmas." Izzie said with a blissful sigh as she looked at the tree. It was all lit up and beautiful.

Alex smirked. "We know."

Mark put a had on her waist and kissed the side of her head.

Alex glanced at the two, mentally shaking his head.

A few minutes later, Meredith came back into the room. "What's next?"

Izzie smiled. "I'm going to go make Christmas cookies! I'll be back!" She happily went to the kitchen.

"Hasn't she been doing that for the past few weeks?" Meredith asked, her eyebrows furrowed.

Derek chuckled. "Yes. She has."

"That's Izzie for you." Alex said as an explanation.

"I think it's cute." Mark said with a smile.

Alex looked at him. "Of course you would think so."

Mark frowned. "It is."

Derek looked at the two. "Are you two really having an argument about this?"

"We're not arguing." Mark replied.

Just then a loud "Ow" and an "I'm okay" was heard from the kitchen.

"I'll go check and see if she's okay." Meredith said glancing at Mark's face, then heading towards the kitchen.

"She just said she was okay." Alex said.

Mark glanced at him, but before he could say anything, Alex's cell phone rang.

"That's probably Addison." Derek and Mark exchanged a look. "I'll be right back."

XXXXXXX

"Hey." Alex said into his phone.

"Hey. How's is going over there?"

"Okay." Alex replied. "Izzie's baking Christmas cookies right now."

"Again?"

Alex nodded as if she could see him. "Yeah."

"Anything else?"

"No. Just the usual, Mark and me put up the tree, all the decorations and lights are up…" Alex shrugged.

"Sounds exciting."

Alex smiled a bit. "It is. How're your parents?"

"They're good. Still going back and forth between rooms every hour, but it's worth it if I get to see them."

"I'm glad." Alex said honestly.

"Did you call your mom yet?"

"No. I'm calling her tomorrow. Her and my sister went somewhere today." Alex told her.

"Oh. I'm going to get back. I'll call you later. Bye."

"Bye." Alex said before hanging up. He started to smile to himself.

XXXXXXX

Later in the evening, they had an enjoyed a large meal, not as large as Thanksgiving, but large enough. Now, they were sitting in the living room, the tree sparkling.

"We should watch Frosty the Snowman!" Izzie suggested, getting up to get the DVD of it that she had to put it in.

Alex groaned. "Oh, god."

Derek looked at Alex and chuckled.

Meredith smiled softly to herself. She has only seen that a few times in her childhood, but not very many. Even though she had her sister to celebrate Christmas with her, there wasn't much Christmas joy in her house. She always smiled at her sister's attempts to put joy in the holiday whenever it came about though. Now, she was grateful Izzie was big on the holidays, like she was getting back what she should have had as a kid.

Finishing putting on the DVD, Izzie smiled and sat back next to Mark.

Meredith and Derek shared a glance. Derek smiled at her, and Meredith smiled back.

Rolling his eyes, Alex wished Addison was there with him so he wouldn't be alone with the mushy couples during this time.

XXXXXXX

Later that night, and after another watching of Frosty and Rudolf the Red Nose Reindeer, with Izzie humming along to the song, Alex decided to turn in. He went over to his place, receiving a call from Addison.

"Hey."

"Hey. What are you doing?"

"Heading to bed." He told her. "How about you?"

"Heading to my place. Just wanted to say goodnight."

Alex smiled. "Well… Goodnight. I'll see you tomorrow?"

"For a bit you will. Night."

"Night." Alex said once again before hanging up, a smile playing on his lips.

XXXXXXX

Mark and Izzie waved to Meredith as they made their way upstairs, claiming they were going to hang out for a bit before Mark headed to his place.

That left Meredith and Derek alone. Derek looked at Meredith. "Tonight was fun."

Meredith nodded. "It was." Just then, she stood up, walked over to where he was sitting and kissed him.

"What was that for?" Derek asked smiling.

"Think of that as a pre-Christmas Day gift." Meredith said repeating his words before making her way upstairs.

Derek smiled to himself. The waiting, he could handle it.

XXXXXXX

Izzie and Mark walked over to her bed, Mark stripped down to his boxers, and Izzie changed into a pair of pajamas. After, they maneuvered themselves onto her bed.

Izzie kissed him, then proceeded to lay her head on his chest. "I love you."

Mark sighed in content. "I love you too."

As they laid in bed, they both fell asleep.