Disclaimer: I don't own Grey's. I just borrow some stuff from it sometimes.

Here it is! The moment you've all been waiting for! So without further ado…

The wedding ceremony went perfectly. Cristina had a minor freak out as the wedding procession began but Meredith got her down the aisle like she had said she was going to and now she was Mrs. Preston Burke. Meredith watched as she and Burke greeted people in the receiving line, Cristina looking happier than Meredith had ever seen her.

"I didn't get to tell you before but you…You look beautiful," Derek smiled, walking up to her.

"Thanks…"I should probably go find Gabe," she said quickly.

"Yeah," he answered dejected.

Meredith felt Derek's eyes on her as she walked away to go found her date. Or her boyfriend. She hadn't officially called Gabe her boyfriend yet. But according to Izzie, bringing him to her best friend's wedding solidified that status. She found him outside of the ballroom, talking to Alex and George.

"Hey you," Gabe said, kissing Meredith on the forehead, "You did great."

"Thanks," she smiled, "I didn't really do anything."

"Well, you look beautiful," he said, repeating Derek's words from minutes before.

"You don't look so bad yourself," she said, leaning into his arms.

"Meredith," Derek interuppted, "Burke wants us for photos."

"Oh. Okay. I'll see you inside," she gave Gabe a kiss that made Derek wince before he placed his hand on the small of her back and led her back to the room where the ceremony had taken place to take photos.

After they had finished with the photographer, the wedding party headed back to the ballroom for cocktail hour and the beginning of the reception. Much to Cristina's offense, she and Burke danced their first dance as husband and wife, before heading back to their separate table to be served dinner. Burke's and Cristina's mother made a toast together, Cristina's jaw clenched the whole time as Burke smiled.

The rest of the party was a success. Even Cristina seemed to be enjoying herself, as the two families came together, dancing and laughing.

"May I have this dance?" Derek asked.

"Seriously?" Meredith raised her eyebrows at him.

"Yeah. Come on," he nodded his head in the direction of the dance floor, "The best man and the maid of honor are always supposed to dance together."

"I've never heard that before," she stood up.

Derek took Meredith's hand and led her to the dance floor, wrapping his arm around her waist. They moved slowly to the music, neither of them saying anything as Meredith rested her head on Derek's shoulder. She felt safe in his arms. She felt like that was where she belonged. It didn't matter that her boyfriend and Derek's wife were watching. She was comfortable. And happy.

"Mind if I cut in?" Gabe interrupted, reaching for Meredith.

"No. Go ahead," Derek responded, not wanting to let her go.

Derek reluctantly let go of her, handing her over to Gabe, before walking over to Addison and asking her to dance.

"Having fun?" Gabe asked, looking around at all the couples.

"Yeah. I usually hate weddings." Meredith smiled, looking over Gabe's shoulder at Derek while he was dancing with Addison.

"I think I'm going to go outside" she said, pulling away from Gabe, "It's really hot. And…I've just…I need some air."

"You want me to come with you?" he asked.

"No. No, I'm fine."

Derek watched as Meredith hurried away from Gabe and out the door to the ballroom. The jealously that he felt from watching another mans hand around her went away as all he wanted to do was make sure that she was okay.

"Yah know what Addie? I have a few more best man things to do. I'll be right back," he told her.

"Okay," she sighed, "Don't take too long."

"I won't," he said, kissing her on the cheek and leaving the ballroom to see Meredith running down the hall.

"Meredith!" Derek yelled, chasing after her.

"Leave me alone."

"Meredith!"

She disappeared into another room but he pushed his way through the door before she could close it and keep him out.

"Leave me alone."

"I just wanted to make sure you're alright."

"No! I'm not alright! Okay. Are you satisfied? I'm not alright. Because you have a wife. And you're having a baby with her. And now you're looking at me. Stop looking at me."

"I'm not looking at you," he continued to stare at her, "I am not looking at you."

"You are looking at me. And you watch me. And Gabe is great. I like Gabe. And I'm really trying here to be happy. And I can't breathe…I can't breathe with you looking at me like that so just stop!" Meredith yelled.

"Do you think I want to look at you? That I wouldn't rather be looking at my wife? I'm married. I have responsibilities. We're having a baby for God's sake. She doesn't drive me crazy. She doesn't make it impossible for me to feel normal. She doesn't make me sick to my stomach thinking about another man touching you with his hands. I would give anything not to be looking at you. Not to be wishing I was having a baby with you."

Meredith turned around to face Derek. As he looked up at her it was clear to both of them that the friendship wasn't working. They couldn't do it. There was too much history and too many feelings involved. And before either of them could say anything else, Derek took her head in his hands and kissed her hard, Addison and the baby the farthest thing from his mind.

Derek lifted Meredith onto a desk and continued to kiss her. She ran her hands up and down his back and his chest before sliding his coat off and letting it fall to the floor. He pulled her closer to him as his erection grew and he moved his mouth down to her neck, sucking and kissing her in the places he knew made her go crazy.

He looked into her eyes as he slowly pulled her panties down and left them discarded on the floor with his jacket. Meredith pulled him back up to her lips, kissing him hard as she fumbled with his belt, trying to get his pants undone. He pulled away from the kiss quickly and unbuttoned his pants, pushing them down and began to kiss down her chest, around the outline of her bra.

She pushed down his boxers and their lips met once again as he slowly thrust into her, causing her to gasp. Derek moaned into her mouth as they began to slowly move together, Meredith clawing at his chest and shoulders.

"Jesus Mer," he muttered as wrapped her legs around his back, causing him to move deeper into her.

"Derek…Oh…" Meredith moaned with each thrust.

"God, Meredith," he groaned, concentrating on not finishing yet, just wanting to pleasure her, wanting to stay in her as long as possible.

"Der…" she whimpered as her body tightened in anticipation of her orgasm as Derek kissed her neck.

"Meredith," Derek grunted, as he felt her body tremor below him, her orgasm taking control of her body.

"Derek," she cried as her body continued to tighten and relax, Derek's orgasm overtaking him as he released into her.

She leaned against him, both of them trying to catch their breath and recover from their orgasms, covered in a fine sheen of sweat. It didn't take long for either of them to realize what they had done and what the repercussions were going to be. The only problem was at the time, it didn't feel wrong.

"What does this mean?" Derek asked, pulling his pants back up.

"Uh, I had panties on. Black ones. Do you see them?" Meredith frantically looked around the room.

"What does this mean?" he repeated.

"Fix your tie," she ordered.

"Meredith, what does this mean?"

"You…I have…I have to go," she rushed out of the room.

Meredith hurried out of the room and quickly found Gabe talking to one of Burke's cousins. It was business talk and Meredith didn't want to interrupt. But she had to get out of there. She had to get away from Derek and away from what she just did before she told somebody what she just did or somebody figured it out.

"You okay?" Gabe asked concerned, as he brushed her hair out of her face, "You look flushed."

"I'm fine. Just tired," she lied, "I think I'm ready to go."

"You sure?

"Yeah. Let's go."

The party wrapped up quietly, Cristina and Burke headed up to the honeymoon suite while the waiters and staff began to clean up the ballroom. Derek watched as Meredith left with Gabe, before getting in his own car and leaving with Addison. There wasn't any excuse for what he had just done. Addison had cheated on him and he had been furious. He had moved all the way across the country because of what happened. And now he had gone and done the exact same thing to her. But this time, she was pregnant with his child and the stakes were higher.

You're in my arms
And all the world is calm

The music playing on for only two
So close together
And when I'm with you

So close to feeling alive

YAY! MER/DER! Okay. Sex scene. How did I do? And…I stole that whole scene from the show. Well, I changed it a little bit. But I still feel bad for taking it. But it was a great scene and it fit perfectly. And the song lyric, it's from Enchanted. Because I love that scene with that song and the dancing and everything Don't forget to review!

I was trying to put links to pictures of Mer's dress, Cristina's dress and Derek's suit, but for someone reason it won't let me!!! If you want to see, let me know and I can PM it to you.