Title: A/U Slexie

Author: NCIS1990

Disclaimer: I don't own "Grey's Anatomy" or it's characters.

Summary: A different take on Lexie showing up in Season 4. What if she and Mark had crossed paths, if you know what I mean, before he came to Seattle. When she comes she doesn't just surprise Meredith by being her sister she also has a surprise for Mark.

A/N: I know this is like the millionth Slexie fic I've started but I keep getting these ideas in my head.

Chapter 1

SCENE: LEXIE'S APARTMENT

(Lexie is frantically running around putting everything she needs into a diaper bag.)

Lexie: Okay, extra diapers, check. Baby wipes, check. Bottles check.

(She hears a coo and looks up from the bag and over to the carseat sitting on the table.)

Lexie: Aiden check. Like I could ever forget you, your Mama's little man aren't you?

(Aiden giggles.)

Lexie: Yes, you are. You are also trying to tell me to calm down. I made it through college I made it through Med school even though I was pregnant and then a single Mom. I can make it through this, right? An-And I'm nervous about meeting my sister but there is nothing to be nervous about, either way it goes I'll still know that she's there whether she wants to be my sister or not. (Sighs) Mommy's a crazy person isn't she?

(Aiden smiles)

Lexie: I guess this would be easier if Gran was here. She was always there for me. Most Moms when they find out their daughters became pregnant from a one night stand would totally judge them, but not your Gran. She was there every step of the way and she loved you so much, you know that right?

(Aiden coos.)

Lexie: Yeah, I know I'll be okay, I know I'll always have you.

(She leans over and kisses his head.)

Lexie: We better get going before Mommy is late.

A FEW MINUTES LATER AT THE HOSPITAL DAY CARE

(Lexie opens the door with Aiden in her arms and goes over to the front desk.)

Lexie: Hi, I'm Lexie Grey and this is my son Aiden, I believe you were expecting us.

Receptionist: Oh yes, hi! I'm Carol, and isn't this one little cutie, how old is he?

Lexie: He's nine months old.

Carol: Great! Well, don't worry he is in good hands and you are welcome to come see him anytime you have free.

Lexie: Oh god, that's great. I've never left him before, at least not with strangers. My Mom watched him when I was in Med school but she died recently, from the hiccups no less. And my Dad well he didn't take it well at all and now mostly drinks himself into a drunken stupor and oh my god and just shared my life story to a total stranger.

Carol: It's okay to be nervous, I'm sorry about your mother.

Lexie: Thank you, well I guess I better get going. (She holds Aiden up so he's eye level with her.) Okay baby, I'm going to leave you here with Carol for a little while, but don't worry I'll come and see you as much as I can. I love you so much. Be good. (She peppers kisses all over his face and then hands him to Carol.) Here's his diaper bag. (She hands it to Carol.) I guess I better get going, bye baby. (She blows him a kiss and walks towards the door. After taking one look back at Aiden she walks out the door.)

A FEW MINUTES LATER IN THE PIT

(Lexie walks up to Cristina.)

Lexie: Excuse me, are you Dr. Yang?

Cristina: Yes.

Lexie: I'm one of your new interns, my name is L—

Cristina: Don't bother to me you're 3. Your assigned to Plastics today with Dr. Sloan, oh here he comes now, Dr. Sloan!

(Lexie turns around and is shocked at who she sees. Mark spots her and is just as shocked.)

A/N: There we go, the first chapter. Let me know what you think. On a side note sorry most of my stories have lame titles I'm just not good at coming up with them.