The smile stayed on Arizona's lips through the rest of the morning. She felt warm and fuzzy, and like she didn't need her Heeleys to glide around the hospital. She also had to admit that she was feeling quite pleased with herself. Her mind flashed to the vision of Callie's face, and the tingling that spread over her body as Callie kissed her neck, and the way that her breath snagged when Callie touched her. In fact, she was so consumed with everything that was Callie, that the tall blonde that walked up next to her at the desk went completely unnoticed. She had just arrived at the decision to page Callie to an on-call room, when she was startled out of her day dream.

"Good morning," The woman next to her offered.

So, it wasn't a very surprising remark, but it was from left field compared to where Arizona's mind was. "Oh, hi. I'm sorry, my mind was completely else where," Arizona managed to recover.

"Don't worry, I've been there," she returned good naturedly. She tucked a strand of hair behind her ear and smiled at Arizona. "Good or bad? I'm going with good."

"I'm sorry?" Arizona was lost again.

"The place your mind was, was is a happy kind of place or a 'I have so much to do' place?" The woman explained.

"I guess, a little of both, but mostly happy," Arizona grinned decidedly.

"That's what I thought, the way you stared off, but smiled at the same time. Not many people can pull off aloof, but you have the dimples that make it work," the blonde smiled shyly at her.

Arizona smiled back at her, although the taller woman's tone had been casual, Arizona did not miss the fact that she was flirting with her. On account of her exceptionally awesome mood, Arizona decided to let her. "Yeah, they help me get away with a lot…" she smirked nostalgically, "…a lot."

"I can see that."

Arizona thought she saw the blonde blush slightly. "So, are you here as a patient? Visitor? Doctor?" Arizona tried to steer the conversation away from the discomfort zone, only barely noticing that Mark Sloan was standing several feet away.

"Doctor. I was called in from Chicago on a cardio consult."

"Oh, super! I work in Peds. surgery. Doctor Arizona Robbins," Arizona extended her hand.

The blonde took her hand, but was silenced by a bristling Dr. Sloan.

"What the hell are you doing here?" Mark practically spat at the woman.

"Oh, Dr. Sloan, so good to see you again," her tone was flat, and did nothing to mask her contempt for the man.

"I'm surprised to see you at all. I repeat, what are you doing here?" Mark's eyes almost glowed with anger.

"Well, that's not really any of your business."

"It absolutely is my business, especially if it's because of--"

She cut him off quickly, "It has nothing to do with that. The chief asked me to come by for a special consult."

Arizona didn't know what was going on, but her best guess was that this woman dated Sloan and then decided that women were a smarter choice. However, she was a mildly intrigued.

"Unless you're going to deliver one damn perfect apology, don't go near her," Mark warned in a low voice that was almost a growl.

"Don't think, for one second, that you can tell me what to do, or threaten me in any way that would actually scare me." The woman seemed to be staring at him with the same conviction she was receiving.

Arizona was riveted.

"I think that in this situation I have every right to tell you what to do, and you can start by not hitting on Dr. Robbins."

Arizona was startled by her sudden involvement.

The woman turned a dark shade of pink, "I wasn't, and that is definitely not your business anymore."

For the first time, Mark smiled, "I think I know better than anyone when someone is hitting on someone, in fact, I have a pretty good foundation for knowing how you flirt. And, actually, you happened to hit on one of the few people in the hospital that makes it my business."

"And, who is she that makes it your business?"

"Arizona Robbins?" Arizona offered again, totally confused.

"She's one of my best friends' girlfriend, which means that I have the right to stop the wrong people from hitting on her," Mark said with a smug grin.

"Shepard? I thought he was chained to Grey," seeing him shake his head, almost giddily, "who else would be your friend, except--" she stopped, realization making her face pale. She slowly turned to Arizona, "You're Callie's girlfriend?"

Arizona, still feeling like she was outside this conversation picking dandelions, answered, "Yes." After a pause, and watching the other woman's features, added, "Why?"

Mark grinned even bigger, "Oh, I'm sorry, I thought she introduced herself. I believe you've heard of Dr. Erica Hahn?"

All the pieces fell together at once, and the whole conversation made sense. "Oh, you're…Erica." She didn't know what else to say. She did recognize that she felt a little nauseated at the thought that she let Callie's ex hit on her. Callie's somewhat traumatic ex. Arizona examined Erica for the first time since she had run into her. Arizona was disappointed to realize that Erica was actually very attractive, obviously strong, and evidently charming. She also realized that Callie and Erica didn't exactly have closure, so this whole ordeal was going to be emotional and awkward. This was not good.

The three of them stood staring uncomfortably at each other. Luckily, Bailey walked up and greeted Erica, easing the tension slightly.

Arizona turned to Sloan, "You could have gave me a little better warning."

"Yeah, but messing with her was more fun. Plus, she really caught me off guard," Sloan gave a half shrug, and apologetic smile.

Arizona had to admit, he was exceptionally charming, despite the fact that she wasn't attracted to him.

"Also, I'm going to choose to forgive you flirting back and write it off as you being pleased with yourself due to events that occurred this morning," Mark mocked a stern face.

"She really does tell you everything," Arizona said to him while shaking her head, then added, "on a scale of 1 to 10, how bad is this going to be for Callie?"

"An easy 8."

"And, for me?" Arizona asked a little nervously.

Before he could answer, Callie made her entrance and expressed the same desire that Arizona had before Erica entered the picture. Callie briefly pressed herself along Arizona's back and whispered seductively into her ear, "On-call room, now."

Somehow Callie had not noticed Erica standing just behind Mark, and had not noticed that she had turned back to the group just as Callie placed her hands on Arizona's waist and whispered in her ear. Just in time to see them both slightly flush from the proximity of the other. But, Callie noticed her when Arizona cleared her throat and squeaked, "Now's not good."

Callie stepped back to argue, and in the process glanced at Mark, thereby glimpsing who was hovering behind him. "Erica?" Callie looked like she was going to puke, and sounded like she had seen a ghost.

"Callie," Erica answered weakly.

"Today is weird," Callie's statement surprised everyone.

"That's not really what I was expecting."

"I don't really care what you were expecting, Erica." Callie said matter-of-factly.

Callie laced her fingers with Arizona's and tugged her down the hall. Mark and Erica just stared after them.

Callie yanked Arizona into the on-call room, and in one motion closed the door, flicked the lock, and pushed Arizona against the door, kissing her hungrily. Arizona barely had time to register anything, so she kissed her back.

After a moment, Arizona broke away. "Callie, what are you doing?"

Callie scrunched her face, "I kind of thought that was obvious…"

"No, I know what you are literally doing, but why did you drag me in here, when Erica is out there? You just saw her for the first time since she left, don't you think you need to go deal with it?" Arizona tried to explain.

"Arizona, I've spent way too much of my life dealing with her, right now all I want to do is this…" She punctuated her sentence by kissing Arizona intensely.

Arizona was about to protest, but quickly lost her train of thought as one of Callie's hands untied the draw string on her scrubs and the other found its way under her shirt to tease the underside of her breast, their lips and tongues never separating. Arizona almost decided that a quickie wouldn't really do any harm, but grudgingly changed her mind and summoned up the very last ounce of resistance she contained. Arizona gently, but firmly, placed her hands on Callie's shoulders and pushed her away. And, she saw it. Though she was panting and hazy, Arizona easily saw through the mask of lust on Callie's face and saw the hurt and fear in her eyes.

"Calliope."

Callie sighed and stepped back, "I know. I just have no idea what to say or do. I mean, she left me. She straight up walked out of my life without a good bye or explanation. Nothing. I was so hurt when she left, I don't know how to deal with her being back." Callie's voice shook slightly, and she sunk down onto a bed.

"I know it's hard. I really wish there was some way I could make it easier for you," she smiled when Callie glanced up and gave a small grin, "Not that…right now…but, something. I do think that it's important for you to talk to her. You never really had the opportunity for closure, and I believe that's really necessary." Arizona sat next to her and clasped her hand.

"Yeah, I think so, too, it just doesn't sound very fun. What do I say to her?" Callie looked into Arizona's eyes, searching and pleading.

Arizona paused, considering, "Tell her that she hurt you, ask her why, tell her everything you ever wanted to and ask her everything you want to know…just…" Arizona trailed off and looked down at her lap.

"What?" Callie asked, concerned.

"Just don't…it would really be better for me if you didn't realize that you're still in love with each other and decide to try it again, I'm so not ready to lose you." Arizona smiled sheepishly.

"I don't see that happening."

"I mean, if you think that will make you happy, then do not let me get in your way, I want you happy. Mostly, I want to be the reason you're happy, but I want you to be happy. It will just be easier for me to be happy if I'm with you." Arizona rambled a little, not looking directly into Callie's eyes.

Callie leaned over and kissed her softly, "I'm happy with you."

Arizona's eyes twinkled, "But, if that changes…"

"I'll let you know," Callie rolled her eyes. They both stood up, fixing their cloths and hair. Callie reached over to retie Arizona's scrubs, "By the way, just so you know, I didn't bring you in here to avoid her, I really did--do, want you very badly." Her voice became low.

Arizona smirked, "Obviously, when don't you?"

"Good point."

"And, if your first girl ex that left you wasn't here, I would totally let you have me…in fact, when this is resolved I'll let you have me whenever you want." Arizona winked and gave Callie one last kiss, before exiting the room.

"Are you trying to bribe me?" Callie grinned.

"Just go find her."

Callie took a deep breath and headed back to the desk. Arizona watched her go and hoped this wasn't a massive mistake on her part. She knew that closure with Erica would allow Callie to really open herself to Arizona. However, it could go the other way.