Callie stood in front of the full length mirror in their bedroom and looked at herself in the plum colored wrap dress she was wearing. She wondered if she should change her clothes. Callie walked into the walk in closet looking for something different.

Mark said "Callie, you look beautiful in what you are wearing. I don't think that you need to change or anything." Mark walked into the closet. "They are just our friends and the people we work with." said Mark looking at her.

Callie said "I know who is coming to the party Mark." "I was just wondering if I should change." "But you are right this is good enough." "Besides I am too tired to change." said Callie laughing. "I am glad that the party is here." Callie smiled. "How are the caterers doing?" "The food smells great."

"They are doing great. Most of the appetizers are almost done." "Do you want to sample something?" "You didn't eat lunch today." asked Mark walking out of the closet with Callie and closed the door.

Callie said "Mark, I can wait until the party starts." She frowned glancing at the vitamins sitting on top of the dresser. "Alright, I will sample something and take my vitamins and everything." She smiled and said "I have to stop being so stubborn and think about the babies." Callie walked out of the bedroom taking the vitamins with her and walked into the living room. She had a seat on the couch and put her feet up.

Mark turned on the music and then disappeared into the kitchen and returned with a plate that had samples of all of the appetizers. "I tasted a few of them. They are pretty good."

Callie ate some of the appetizers and then took her vitamins. As she was finishing the doorbell rang as their first guests started to arrive.

Mark got up and said "I will answer the door."

Callie chuckled and said "I will come with you." Callie got off of the couch and walked to the door with Mark.

Mark opened the door and smiled seeing Derek and Meredith at the door. Both of them were carrying housewarming gifts. Mark smiled and said "Hi, come in." "I am glad you two were able to make it." "I know you had a late surgery today Derek."

"It was cutting it close but I finished the surgery in good time and I was able to go home and shower and change." said Derek. "Wow…look at that view." said Derek looking at the city lights tinkling outside of the floor to ceiling windows. Derek said "We brought gifts of course." "Where do you want them?"

Mark motioned to a table and said "You can sit the gifts over there on the table."

Meredith smiled and said "Hi, Mark. Hi, Callie." "Thank you for inviting us."

Callie said "You are welcome. We are glad that you two came." "Do you want a tour of the penthouse?"

Meredith smiled and said "Sure I would love that."

Mark motioned to a table and said "You can sit the gifts over there on the table."

Derek kissed Meredith's cheek and took the gift she was carrying and set both of their gifts on the table. Derek walked over to Mark and said "This place looks great." "I can't believe you finally moved out of that hotel."

Mark chuckled and said "I guess I decided it was time to grow up." "Put down some roots."
"Besides I couldn't ask Callie to move into a damn hotel room with me."

"So how are things with you and Callie?" asked Derek.

Mark said "Can I count on you to keep this to yourself?" "You told me that if I told you something and asked you not to tell Meredith that you would honor that."

Derek said "Sure, you can tell me whatever you want." "I won't say a word to Meredith." "Is everything okay?"

"Everything is great." "Callie found out today that she is 11 weeks pregnant with twins." "Hearing those heart beats today was amazing." "And the smile on Callie's face…" said Mark.

"That is huge Mark….congratulations." said Derek. "11 weeks?"asked Derek laughing. "You always did move quickly." Derek clapped Mark on the back and asked "So are the two of you excited?"

Mark nodded and said "Definitely, I am glad that we actually live in a place big enough for two babies." "I don't think either of us has another move in us right now."

"You two are going to stay here in the penthouse? What about grass and open space for the babies as they get older?" asked Derek.

Mark chuckled and said "Well, for now they are fetuses and don't need outside space. And for the first two years I think we could get by with just taking them to the park and maybe over to Uncle Derek's house every once in awhile if they just need wide open spaces."

"You do have a point there." "I can't wait to tell my mother. You know she will be on the first plane out here to see you and to meet Callie." "Meredith is nervous about meeting my mother." "Maybe this will help make it less scary if Callie and Meredith meet her at the same time." "You know take some of the heat off of Meredith." said Derek.

"Well, don't tell Carolyn yet… Callie and I haven't really discussed who we should or should not tell. But I couldn't not tell you." said Mark. "So that was the good news of what happened today but there was some bad news." "A stripper named Candi showed up at the door today to give me a show…and more." said Mark.

"And more?" asked Derek. "Oh! And more…" "Is she an ex-girlfriend?" asked Derek knowing that his friend had been known for being indiscriminant in the past and a stripper that slept with her clients sounded right up Mark's alley.

Mark said "No, she wasn't an ex-girlfriend. In fact I had never met this woman before." "She was a gift…from George O'Malley." "It got Callie so upset that…" "For awhile I was worried that she might have miscarried." "She was probably worried too but just refused to tell me." "If he shows his face here tonight he is going to need me to fix it when I am done with him."

"I wouldn't think that George would be a vicious person. He seems like a puppy most of the time." "Well, I am sure he didn't anticipate that the stress would be detrimental to Callie though." "No one knew she was pregnant." said Derek. "Don't do anything that will put you out of commission for surgery." "Your hands are your job."

"I don't give a damn about the job. His little stunt ran Callie's blood pressure sky high." "He will be lucky if he is able to limp his way out of here." said Mark. He stopped talking as Callie and Meredith returned from their tour of the penthouse.

Meredith said "Mark the penthouse is great. It definitely looks like your style."

Mark laughed and said "Thank you but I did not have a hand in the decorating. We hired an interior decorator to do the work." "If Callie and I had to decorate this place we'd probably still be living out of boxes."

Callie smiled a little but the look on his face when she and Meredith had walked up concerned her.

The servers came out of the kitchen serving drinks and appetizers. Soon there was another knock at the door. This time Callie went to the door and opened it. She smiled seeing Cristina Yang. Callie said "Come in." "I am glad that you were able to make it."

Cristina said "Well, you know how I feel about parties." "But I decided to come anyway." "You might not want to close the door." "Dr. Webber, Bailey, and her husband were coming into the building when I got on the elevator."

And sure enough a few seconds later Dr. Webber, Miranda Bailey, and her husband arrived at the door with Callie's friend Marisol right behind them.

Callie smiled and said "Please, come in." Isabel and Alex arrived not long afterwards.

As most of the guests had arrived the party got into full swing. Nearly an hour later there was a knock at the door.

Callie and Mark were both occupied so Meredith went to the door for them and let in George. She was unaware of what had occurred earlier in the day. Meredith smiled at her friend. "I was starting to think that you were not going to show up."

"Has anyone said anything about me Meredith?" asked George cautiously. George had been at Joe's drinking before he had the courage to actually show up.

Meredith smiled and said "No, no one." "Why do you ask?"

George shook his head and said "No, reason." He smiled and said "Wow…this is definitely…upscale."

Mark was standing across the room with Callie talking to Dr. Webber when his eyes wandered across the room and spotted George eating an appetizer. Mark felt his blood start to boil looking at the little troll.

Callie realized that he had stopped talking and followed his gaze. "Mark…please behave." whispered Callie quietly. She kissed his cheek.

Mark groaned and said "Cal…." "Fine…" Mark went on telling Dr. Webber about his impressive five hour surgery from a few days ago.

Callie smiled when Mark started to relax and she said "I will be right back." Callie drifted off to the kitchen to check on the appetizers since they were running low. She came back out feeling a little light headed so she had a seat in a chair to relax for a moment.

George saw Callie move away from Mark and decided now was his chance. He walked over to Callie and was quiet for a minute. "Callie, I need to talk to you." "I have some things that I would like to say if you are willing to listen…"

Callie said "George I really don't want to talk to you." "I know you sent a stripper here today." "That was pretty classless of you." "Just because you didn't know what fidelity meant does not mean that Mark is as easily swayed."

"Are you kidding me?" "Mark is the biggest manwhore at the hospital. Everyone knows that including you. Or at least you used to until you were brainwashed by him. He is just a rebound guy." "Everyone is just waiting for the moment when he cheats on you with a nurse or an intern." "I made a mistake that was out of character for me." "And now you have attached yourself to a man that has made cheating his hobby." said George.

"He rejected your little surprise for him. He had no interest in her." "I know it might be hard for you to believe but Mark loves me." "He isn't perfect." "Sure he is tempted but he has worked hard to stay faithful to me." "Don't be bitter." "You got what you wanted…you are out of my life and you are with Izzie." "That should make you happy."

"Izzie and I aren't together anymore. We are just friends. That is all we ever should have been." "I was just overwhelmed and I used bad judgment." "It was never my intention to hurt you." "I miss you being my wife Callie."

"I've moved on George." "I've started my life with Mark." Callie looked at him and blurted out. "I'm pregnant and Mark is so happy about it and so am I." She got up to walk away.

George grabbed her arm and said "Pregnant?" "Wait…how far along are you?" asked George shocked.

"I am 11 weeks pregnant. Back off George." said Callie pulling her arm away from him but he kept his grip tight on her arm.

George wasn't intending to hurt her. He was just shocked and wanted clarification. "Could this baby be mine?" "11 weeks?"asked George trying to do the math in his head.

Mark spotted George holding onto Callie's arm. He took off toward the two of them.

Derek was across the room talking to Meredith and Alex when he saw Mark's determined stride across the room toward George and Callie. Derek handed Meredith his glass of champagne and took off across the room to stop his friend but he was too late.

"Let her arm go O'Malley." said Mark with a growl. Mark punched George without giving him a chance to let Callie go.

"Mark!" yelled Callie.

Mark moved her back out of his way and grabbed George that was trying to slink away. "I want you out of my house!" "Now!"

"You invited me!" yelled George putting his hand to his bleeding nose. He lunged toward Mark showing aggression he rarely had. He punched Mark in the jaw.

Derek got in between the two of them and said "That is it…." "George maybe you should call it an early night…." "You've had a few too many."

George said "Look what he did to my nose!" He stormed out slamming the door behind him.

The party had fallen silent. The only noise in the quiet penthouse was the music playing. George's exit was like everyone's clue that the party was now over. Everyone said their good nights and left for the night.