A/N: Thank you guys for all the kind reviews! I appreciate them so much.

So are we finally going to find out the little girl's name? And how will the Shepherd family handle it all? Read to find out!

"Mer!"

"Cristina!" The two friends hugged, happy to be in each other's arms again.

"I have to admit it's way more fun to see you in person than just talking over the phone. I've missed you."

"I know. I've missed you too."

"And hey there princess." Meredith said as she saw a little girl peeking out behind Cristina. "I haven't seen you in forever! You've grown so much, I think you're almost as tall as me. Come on giver your favorite aunt a hug!" They hugged and cuddled for a while.

"Hey you two have the whole weekend together. Let's grab some coffee and talk while I'm still here. My flight leaves in two hours."

"I thought you were staying until tomorrow? I mean you could just fly tomorrow afternoon and you'll still be on time. Right?"

"Yeah but the tickets are already purchased and I'm going to enjoy some alone time. It's not like I have that on a regular basis." She grinned and kissed her daughter on the head.

"Mom! I'm giving you space whenever you need it. I've never bothered you when you told me not to!"

"I know honey and I am entirely grateful for that. You're an amazing girl."

"Okay, now that we established that your kid is the best of all, can we go grab coffee? I wanna catch up as long as I can." Meredith interrupted.

"Sure."

They walked to the closest Starbucks and ordered coffee and hot chocolate. The two friends couldn't really talk about everything while the little girl was present so Cristina gently suggested that her daughter should use the bathroom by herself – like a big girl. Of course she hit a nerve. Her daughter was as ambitious as she was, so the challenge got accepted.

"Alright Mer, we have ten minutes tops."

"You really know how to handle your kid. I'm impressed."

"Yeah, yeah whatever, she is basically me and I know how to handle me."

Meredith laughed.

"Oh Cristina how can you be so amazing with her and such a bitch when she's not around."

"Believe it or not, I am bitchy around her. Sometimes. When I can't help it." They laughed again.

"Okay now seriously though, I am not sure if I can promise you that nobody will see her. I mean I can't really keep her locked up the whole weekend can I? Plus Derek, Zola and Bailey will meet her anyway."

"You have a house in the middle of nowhere Mer. I'm sure you'll figure something out."

"You do know that Zola is growing to be a bitchy teenager so I'm not sure if she can keep it to herself. And Derek…"

"Come on Derek can keep a secret."

"Yeah but he'll be mad. Like seriously mad Cristina."

"Why? It's not like he doesn't know."

Meredith looked at the floor sheepishly.

"MEREDTIH GREY! Don't tell me you haven't told your husband that my daughter is staying with you for the weekend! I don't want her to get in the crossfire of you two fighting."

"Well umm he won't be mad that she's staying with us… I, uhm, just never mentioned it you know?"

"What did you never mention?"

"Well he kinda doesn't know she exists."

"You cannot be serious. Tell me you're not serious." Cristina looked into her person's eyes. "Oh my god, you are serious. I think it's better if I take her with me in that case. Why did you even offer to take her in the first place?"

"Because", Meredith started,"because I wanted them to meet. It's been ten years Cristina. And I promised to never tell anyone so I never did. Not even my husband. You should be grateful you have such a trustworthy friend."

"You really never told anyone?" Cristina was surprised. She had expected that she would have at least told Derek.

"Of course not. You're my person and you asked me to keep a secret for you. So I did. It wasn't easy but I somehow managed to do it."

"Well if they meet her, could you at least make sure that as few people as possible see her? I really don't want him to find out."

"Oh Cristina why? I honestly think that..."

"Shut up, she's coming back!" Cristina told her friend.

"Hey little princess, are you finished already?" Cristina asked her daughter in a cheery voice. The little girl nodded. "Mommy is so proud of you!" They smiled at eachother. Meredith looked at her watch.

"Cristina it's time. You need to go now if you wanna catch that flight."

They walked to the gate together and it was time to say goodbye. It was hard, on both mother and daughter because they had never been apart for longer than 24 hours. Cristina bent down so she was on the same eyelevel as her daughter.

"Okay sweetie Mommy has to go now. I promise I'll call at least once a day." Cristina took her into her embrace. "I love you. I love you so, so much." The little girl saw the tear rolling down her mother's cheek and kissed it away.

"Don't cry Mom, I'll be fine with Aunt Meredith. Plus we can talk on the phone right?"

"Yeah, yeah we will definitely talk on the phone."

"Come on you guys it's only three days. You'll survive." Meredith said rolling her eyes and stepped forward to hug her best friend.

"Promise me he won't see her?" she whispered into her ear.

"Promise." Meredith whispered back.

"Take good care of my little girl okay?"

"Okay. Now go or you'll miss the plane."

Cristina planted one last kiss on her daughter's nose and hugged Meredith again and then disappeared behind security.

Suddenly the little girl started to cry.

"Hey what's wrong?"

"I miss her already…"

"Oh honey she'll be back in no time. Now let's go home and I'll introduce you to my family, how does that sound?"

"Sounds good."

"Alright, let's go then."

They arrived at the Shepherd's mansion about one hour later. Meredith got out of the car to get the suitcase as the little girl jumped out of her car seat and looked at the big wooden house in awe.

"It's so pretty!"

"Thanks. You wanna come in or just look at it from the outside?"

"Coming."

They entered the big living room that also included the kitchen. It was friendly and open due to the huge windows that basically were the wall. An amazing place to grow up. They went upstairs where Meredith guided her niece to a big empty room.

"That's your room. Actually it's your mother's room but she hasn't been here in ten years so you can have it."

"What do you mean with it's my mom's room?"

"Well we built it for her so she could stay here whenever she wanted. Or needed."

"Like a guestroom?"

"Kinda. But only for your Mom. We have an actual guestroom downstairs." Meredith smiled. The little girl looked so much like her mother. "I'll let you unpack. Derek will be here with Zola and Bailey in about thirty minutes."

"Okay."

Suddenly they heard someone downstairs. It was a male voice talking. A younger, female voice answered.

"Or maybe not." Meredith grinned. She left the room. "Derek is that you?"

"Yes dear." The male voice answered.

"Did you get the kids?"

"Yes mom, we're both here." Another young, male this time, voice answered.

"Good." Meredith said and turned around. "You stay here. I'll get you when… when we're ready okay?"

"They don't know about me do they?"

Meredith couldn't help but smile a little. This girl was definitely smarter than she should be.

"Not really."

"Okay. Have fun explaining." They smiled at eachother. Meredith turned around again, closed the door to Cristina's former room and went downstairs.

"Were you in Aunt Cristina's room?" Zola asked curiously.

"Yes. Why?"

"Well you haven't been in there in like ten years." Bailey pointed out.

"Not true!" Meredith responded.

"True. You said it was too painful."

"Whatever. There's something I need to talk to you about."

"Does it have something to do with the fact that you were in Cristina's room?" Derek inquired.

"Yeah, kind of."

"Okay."

"You guys may wanna sit down for this."

"You're scaring me Mom." Bailey said.

"It's not that bad..."

"Meredith out with it!" Derek said.

"Cristina is nominated for the Harper – Avery this year and as you know the gala is this weekend so she came back to the US for the first time in ten years and…"

"Aunt Cristina is here? Why didn't you say that earlier? Man you scared me…" Zola said excitedly.

"No, no Cristina's not here." Meredith could see the disappointment in her daughter's face.

"Meredith…" Derek started.

"It's her daughter. She's staying with us until Monday."

"Wait WHAT? Since when does Aunt Cristina have a DAUGHTER?"

"About nine years I guess?"

"Meredith what in god's name.."

"Okay you guys calm down. I promised her I'd never tell anyone but now she needs our help okay? So I'd be grateful if we all could keep this to ourselves." Derek looked at her angrily. Zola and Bailey were confused. How come their Aunt had a daughter who was nine years old and they had never met her? Was something wrong with her? Derek grabbed Meredith by her hand and whispered to her.

"It's Owen's isn't it?"

"Derek please I…"

"Just answer the question Meredith."

She remained silent and just looked at him.

"Oh my god it is and he has no idea does he?"

Silence again.

"Meredith he has a right to know. It's his kid. He needs to know."

"Derek NO! I promised her not to tell anyone. I promised okay?"

"Okay but if he sees her I won't lie. I can't do that."

"All right then I'll have to make sure he doesn't see her." She turned around to her kids. "Do we have an agreement? This does not leave the house, understood?"

"Yes." They all said in union.

"Okay. I'll go get her. She went upstairs again and opened the door. "Honey you can come down now. They are very excited to finally meet you." The little girl raised her eyebrows. Finally?

"So they took it well?"

"Could've been worse. Are you coming now?" Meredith took her by the hand and walked her down the stairs. She saw her family's eyes widen when they saw the little girl. A girl who looked exactly like her mother. There was no denying, it definitely was Cristina's daughter.

"Hi, I'm Derek. I'm happy to get the chance to meet you. You know my wife, Meredith hasn't even told us your name yet." He smiled and shook the little girl's hand.

"Oh, I'm Olivia. Olivia Meredith Yang."

A/N: Why I chose Olivia will be explained later on!