Okay, so I should preface this by saying that the Internet is a sometimes helpful, sometimes very frustrating place. I got some very varied answers as to how long it would take a lab tech in a private hospital to run a DNA test. So if someone is an expert in this, and I've gotten it wrong, I apologize. Five days was one of my potential answers and five days fit best with my story, so I went with five days. Yes, I'm a bit of an opportunist.

It had been a busy four days. While Sawyer may have been waiting earnestly for the results of the DNA test Callie had ordered, that test and the results had been the furthest thing from Callie's mind. Because that night, Dr. Wong had called and confirmed that everything was in order and that they could proceed with the TVOR procedure for harvesting Arizona's eggs the next day.

And so, with Sofia dropped off at Daddy's, they'd made the drive back to Olympia for the procedure. While the drive to Arizona's preferred fertility specialist might be a bit of a nuisance, Callie couldn't deny the added bonus of the fact that a different city meant a privacy and secrecy that they likely would never have found in Seattle. The medical community was simply too small.

And yes, it was a relatively simple procedure, especially for two experienced surgeons, but that didn't mean that they both weren't nervous. Arizona had, true to form, stopped eating twelve hours prior to the surgery rather than the six hours Dr. Wong had specified – just to be sure, she'd supplied as she refused the dinner Callie had tried to offer her. And Callie had held tight to Arizona's hand throughout the entire procedure despite the sedation her wife had been placed under, and held fast to that hand until Arizona had groggily woken up.

Their drive home from Dr. Wong's office had been a quiet one, not just because Arizona was still a little out of sorts from the procedure, but because both women's thoughts were back in Olympia with a little petri dish the was holding their dream.

The call from Dr. Wong two days later letting them know that fertilization had been successful and that Callie could come in for implantation meant that Sofia got another day with Auntie Sawyer and the couple undertook the drive back to Olympia one more time like it was nothing. Because really, a 90-minute drive was nothing when the trade off was their baby.

Arizona held just as fast to Callie's hand during her procedure as Callie had during hers. The difference being though, that Callie was wide-awake. When Dr. Wong had finished and left the room, Arizona still clung to her wife's hand. Callie had to remain lying down for a few hours, and Arizona had no intention of going anywhere.

Pressing a kiss to Callie's temple, Arizona whispered, "How was that?"

"Can't say it was my favourite thing," Callie shrugged. "But not bad. And it'll be totally worth it."

Arizona sighed. "You know the odds say that we won't get pregnant on our first attempt."

Callie blinked at her. "I know that," she replied softly.

"I'm not trying to be negative," Arizona continued quickly. "I want this to work so so badly."

Callie gave her hand a squeeze. "I know you do," she smiled.

"I just don't want you to get your heart broken if in two weeks you pee on a stick and it comes back negative," Arizona whispered.

"My heart?" Callie asked.

Arizona sighed and rested her forehead against Callie's.

"Hey," Callie called gently, maneuvering to place a quick kiss on Arizona's cheek. "If it doesn't work, we're both going to be sad. I think that's pretty much a foregone conclusion. But we'll be okay. We have each other. We have Sofia. We'll always be okay."

Arizona smiled with tears in her eyes. "And we can try again," she added. "I will do this as many times as you want me to, Calliope."

It was Callie's turn for watery eyes. "Really?" she asked in a quiet voice. "Because I know it's a lot. And it's expensive - "

Arizona cut Callie off with a quick kiss. "You know I don't care about that," she smiled. "I will go through this with you as many times as we have to. And if we wrack up a massive debt in bringing him into the world, we can just use it against her someday. Really kiddo, we'd love to get you a car for your sixteenth birthday, but your conception was so expensive that we really can't afford it."

Callie snorted. "I love you, you dork."

XXXXXXXX

Yes, it had been a busy four days, full of excitement and nerves. And all that was really left to do now was to wait. Callie and Arizona were both back at work, which was a good thing, because it considerably lessened their amount of obsessing over whether or not Callie was pregnant. Busy and distracted was how both women planned on staying over the next two weeks.

But as she stood at the nurses' station, rubbing away the headache in her temples, Arizona realized that she might have thrown herself into her work with a bit too much gusto. Because if her watch was right (and it always was, set with military precision) she'd had nothing but coffee for over 20 hours now, and given how many surgeries she'd performed and the fact that she'd had (relatively minor) surgery herself just a few days ago, that really wasn't smart. Plus, Callie would kill her if she found out.

"Are you okay?"

Arizona turned at the sound of the voice behind her coming face to face with Alex Karev. Wow. She must really look awful if even Alex has noticed.

"Yeah, fine," Arizona replied, forcing a smile.

"Don't take this the wrong way, but you don't look fine. You look like crap," Alex shrugged.

Arizona shot him a look.

"Hey, no offense," Alex added quickly. "Just, do you need a coffee or something?"

Arizona shook her head. "No. I just need to find five minutes so that I can eat something." She dropped her pen and took an unsteady step away from the counter she'd been leaning on, closing her eyes at the head rush that hit her.

"You want a muffin? A bagel?" Alex asked quickly. "I'll go get it for you."

Arizona smiled to herself a little. That was work for an intern. But Alex would do it himself because (as Callie often pointed out and Arizona continuously denied) Alex was somewhat protective of his mentor.

"A bagel would be good," Arizona conceded.

"Kay, you want one of those disgusting caramel coffee things you drink too?" Alex added.

Arizona smiled. "Yes please."

"Be right back," Alex promised, taking off down the hallway.

Arizona sighed and let her head drop against the counter of the nurses station. She allowed her eyes to close, just for a moment before she heard,

"Um, are you alright?"

God, she must really look like hell.

Forcing her eyes open and lifting her head, Arizona's hands gripped the counter as a wave of dizziness came at her again. Yeah, she really didn't feel well. Focusing on the man before her, it took Arizona a second to place him.

"Captain Baron, right?" she asked, forcing a smile as she greeted her wife's trail patient.

"That's right," the man before her replied. "I'm sorry, I didn't catch your name the other day."

"Dr. Arizona Robbins," Arizona offered, extending her hand for a handshake.

"Dr. Robbins," Baron smiled. "Nice to meet you."

"Are you here for another appointment with Dr. Torres?" Arizona asked. She didn't remember Callie mentioning that she had any trial work scheduled today, but they'd barely talked about anything other than babies for the past four days, so it was possible it had slipped her mind.

"I think she'll be there," Baron answered. "I'm supposed to go to the physiotherapy gym so that they can assess the current function in my knee. So that they have something to compare it against after my operation. I think I'm a little turned around though."

"Mmm, yeah, that can be a tough one to find," Arizona supplied. "You've actually most likely passed it already. If you just go down this hall here - " she pushed herself off from the counter she had been leaning on and took a step in the direction she had indicated. This time, the dizziness came accompanied with a blackness that swallowed her up so quickly she didn't realize what was happening until she was already fainting.

Tim stepped forward and caught her. "AJ, AJ," he called, patting her face. "AJ…"

XXXXXXXX

Callie looked up when a knock sounded at her office door. "Yeah, come in," she called, dropping her gaze back down to the paperwork in front of her.

"Hey, Cal," Sawyer greeted, quietly shutting the door behind her. Dropping into one of the seats across the desk she added, "The blood work is back."

"What blood work?" Callie asked, distractedly shifting papers around her desk, hunting for a form her current file seemed to be missing.

"What blood work?" Sawyer repeated. "Tim's blood work. Or Baron's blood work. Or whatever we're calling him."

"That's back already?" Callie asked, finding the form and placing it in the file.

"It's been five days," Sawyer answered indignantly. "Callie," she added strongly, placing a hand over the file Callie was still working on. "You need to look at it."

Sawyer's tone made Callie finally devote her full attention to her sister-in-law, as she handed Callie the folder she had carried in with her. Callie flipped it open. There, very clearly displayed, one above the other, were the DNA profiles from both Sawyer and Tim. And it was Tim. Even if Callie hadn't been able to interpret what the shared alleles meant, typed clearly below the profiles was the sentence Subjects are half siblings.

"Fuck," Callie breathed, dropping the folder on the desk in front of her. "It's actually… He's actually…"

"Yeah," Sawyer supplied.

"Oh my god, how am I going to tell her," Callie sighed, wiping at her face. She felt like she was going to cry. This was going to hurt Arizona so much.

"The rest of his blood work was all clear," Sawyer added. "The blood work for the trial."

"I really don't care about the trial right now," Callie snapped.

"Right. Sorry," Sawyer offered quickly, her gaze dropping to the desk. "It's just," she continued in a small voice, "he's here today. Right now actually. For the mobility tests."

Callie wiped at her face again. She'd forgotten about that.

"So if you wanted to talk to him, you could. Or I can handle the tests by myself," she added quickly. "If you want to go talk to Arizona."

"I want to go talk to Arizona," Callie replied without thinking.

"Okay," Sawyer nodded, when another knock sounded at the office door.

"What," Callie snapped.

Meredith Grey entered the room, looking a little taken aback at her less than friendly greeting. "Hey, Callie, don't freak out," she started hesitantly, "but Arizona passed out - "

"She what?" Callie cried. "Where is she?"

"In PEDS, in Exam one," Meredith answered quickly.

"Why didn't anyone page me!?" Callie cried, pushing past Meredith as she ran from the room.

"We didn't want you to freak out!" Meredith called after her. "Is she okay?" Meredith added, turning her attention to Sawyer.

"Really not a good time," Sawyer sighed, hurrying after Callie.

XXXXXXXX

As Callie burst into the exam room on the PEDS floor Arizona was groggily coming to, surrounded by Derek Shepherd, Alex Karev and, Callie heart stopped in her throat, her brother.

Derek stepped in front of Callie. "I checked her out," he told her calmly. "She didn't hit her head, and Karev said she hasn't eaten, so there's nothing to worry about. Just stress and low blood sugar." He gave Callie a smile. "I can run some tests if you like, but I really think everything is just fine."

Callie nodded her thanks as Derek patted her arm and made his way from the room.

Callie quickly made her way to where Arizona was lying on the exam table. "Hey," she greeted gently, pushing Arizona's bangs away from her eyes. "How're you feeling? You scared the crap out of me."

But Arizona was looking past her wife. "Where?" she asked. "Where is he?"

"Who?" Callie asked gently.

"Your trial patient. The guy who caught me," Arizona clarified. Callie felt her chest constrict. "Where is he?"

"Um, I'm right here," Tim announced as Sawyer stepped into the room.

And as she saw the way Arizona looked at Tim, Sawyer knew that she knew. That Arizona, who had grown up with that face, who had loved and mourned that face, was seeing past the plastic surgery in a way that no one else could, to the Timothy underneath.

"Out," Sawyer said quickly, grabbing the sleeve of Alex's lab coat and tugging him towards the door.

"What?" Alex asked.

"Seriously, get out," Sawyer pleaded, a slight edge of panic in her voice.

"Um… okay?" Alex complied as Sawyer whipped the door shut behind him.

"You called me AJ," Arizona said quietly.

"No I didn't" Tim denied.

"Yes you did," Arizona stated plainly. She bit her lip and stared at him a moment longer. "Tim?" she breathed.

This actually took all day to write. Because I really wanted to get this chapter right. So I hope you enjoyed. Do leave a review :)