It was another two weeks after deciding that Alex should move in with Addison and Ella that he finally cleared everything out of his room in Meredith and Derek's house. Ella loved having Alex around all of the time. When Mark heard that Alex was moving in, he once again reminded Alex that if he screwed up and hurt Addison or Ella, he would hurt him. Everyone at the hospital congratulated them for deciding to stop tiptoeing around what has been obvious between them for years.

On the day of Addison's twenty-week ultrasound, Alex found Addison by the coffee cart with Callie. Walking up to the women, Addison greeted him, "You left early. I missed you this morning."

"Sorry about that. I got paged and you looked so comfortable, I didn't want to wake you. I was thinking about your ultrasound this afternoon."

"What about it?" she asked, assuming he was nervous about it.

"I'm supposed to get off at noon and it's not until four. Would it be okay if I called the nanny and told her I was picking Ella up today and then bring Ella to the ultrasound? She would be there to find out if she's having a little brother or sister. I know you always have parents bring older siblings to this ultrasound. Besides, she loves visiting everyone here and it's been awhile since she's come."

Picking up her blueberry muffin and decaf vanilla latte, Addison answered Alex, "I guess that would be okay. She asked me this morning if it was a boy or a girl; I told her we'd tell her tonight. She'll think it's really special that she gets to be there when we find out. I'll call her nanny, though. Mark doesn't really like when you talk to her, he's still really protective of me and Ella and doesn't want you to do something to piss her off and make her quit."

Six hours later, Alex returned to the hospital with Ella in tow. "Can I visit Daddy first?" the six-year-old asked as she skipped down the hallway.

"We have to meet your mom upstairs in five minutes. How about we visit him after Mommy's appointment," suggested Alex.

Ella very excitedly and repeatedly pressed the elevator button. The normally calm and quiet child was bubbling over with excitement, both from being at the hospital and from the prospect of finding out whether she'd be getting a little sister or brother.

Addison was waiting for Alex and Ella outside the OB-GYN's office. Addison still wasn't used to being the patient instead of the doctor. As soon as she saw them step off the elevator, she slowly opened the door. By the time she was entering the office, Alex was by her side.

Knowing that both Addison and Alex were doctors and would easily be able to read the ultrasound, the doctor turned the screen away from them until after she had determined what gender the baby was. "You'll be glad to know that it's just one baby in there. Do you want me to tell you whether it's a boy or a girl or do you want to see for yourselves?"

Alex squeezed Addison's hand as she looked at him before answering, "I think we want to see it first?"

The doctor froze the image so Addison could move to get a better look at her baby. "Ella, do you want a little brother or sister more?" Alex asked.

"I'm already getting a little brother from Daddy and Lexie, so can I have a sister?"

"You wanna tell her what it is, Addie?"

"It looks like you're getting another little sister! It's a girl!" exclaimed Addison, eliciting squeals of delight from her daughter.

"I'll print the picture for you and you're good to go," the doctor said as Addison wiped the ultrasound gel from her stomach.

Leaving the office, Alex mentioned to Addison that Ella wanted to see Mark. It was now Wednesday and Mark ended being in an emergency surgery Monday night, so Ella hadn't seen him since Sunday morning. They found him at the third floor nurses' station, harassing some intern into getting him some coffee.

"Daddy! I missed you, why couldn't I come over on Monday?" Ella asked as she ran toward him, wrapping her arms around his legs.

"I missed you, too. There was a really bad accident and I had to help the people get better. I'm off tomorrow, so I'm picking you up from school. Lexie's working tomorrow night, so it's just me and you. Start thinking about what you want to do, okay?"

"I can do that. Guess what Daddy?"

"I don't know, what?" by now Mark had lifted Ella to be sitting on the counter and was looking her in the eye.

"I just saw the baby. It's a girl! Now I'm gonna have two little sisters, a little brother, and a big sister. That's a lot of brothers and sisters."

"That sure is a lot of brothers and sisters. Lexie and I picked a name for your little brother. His name is Bradyn Elijah. Do you like that name?"

"Yeah. There's a boy at school whose name is Elijah. He's okay, but I wouldn't really call him my friend," explained Ella.

"I'm sure your little brother will be your friend once he gets older, right? Someone's gotta show him how to climb the monkey bars and play in the dirt. I think you're the perfect person to do that," Mark said as his pager went off. "I've gotta go save someone. You be good for Mommy and Alex. I'll meet you in front of school tomorrow."