Disclaimer: This is AU. I do not own any of the characters from Grey's Anatomy. I just manipulate them to my will. Also, any line or phrase or setting that seems remotely familiar from any other show, movie or book, also not mine. I borrow…

AN: Ok so this was just a quick little scenario that's been floating around in my brain for a while. I felt that the show missed this situation and I realize that this is an extreme, but it's the way I see it going down. Set directly after 7x12.


"I'm pregnant with Mark's baby. …How about now?"

She is mad. Livid. Lord have mercy on anyone who dared to cross Arizona Robbins. Just yesterday Callie told her this little revelation, and supposedly she told Mark this morning. The father. Just the thought makes Arizona see red. She didn't sleep last night, she couldn't do anything. Sleep. Eat. Breathe. It was all too hard, too painful. And anything and anyone was just cause to get even more pissed off. So now she is hunting the halls of Seattle Grace Mercy West.

Dark blue eyes zero in on her target and the pediatric surgeon's vision focuses. Her breathing increases and a surge of adrenaline gets pumped into her blood. All those lessons from her father come to the forefront of her mind as she closes the distance between her and her kill. Strike hard and strike fast so you only have to strike once.

Her pace never falters as she approaches him, anything besides her target fading from her senses. That sentence keeps replaying in her mind. I'm pregnant with Mark's baby. I'm pregnant with Mark's baby. I'm pregnant with Mark's baby. It's too much. Arizona always thought she was a calm and sane woman, but something inside her has snapped.

Her victim stops to converse with a fellow coworker, a broad back facing her.

"Sloan!" Arizona snaps, and the man turns.

Mark turns and instantly reads the crazed look in the blonde's eyes and brings his hands up in surrender. "Now wait, Arizona, I didn't-"

But the sentence never gets finished because Arizona's clenched fist makes contact with Mark's face. A white streak of pain flashes in Sloan's eyes as Arizona lets out a growl of anger. The ache in her hand means nothing to her because she is riding high on adrenaline and pure hate.

Mark brings his hand down from his nose and finds blood.

"What the hell!" He yells, making everyone who have frozen after the hit jump.

"You bastard!" Arizona spits.

"You broke my nose!" Mark shouts back, blood dripping from his face and splattering down the front of his white lab coat and navy scrubs.

"You're lucky that's all I broke." The peds surgeon replies. "How could you?"

"It was an accident!" Mark rebuttals, then glances around at the ten pairs of eyes watching them. "Not here." He growls.

He attempts to grab Arizona's arm to pull her away from the crowd but the blonde just yanks her arm free. With a glare that could freeze lava, Robbins storms past the bleeding man and enters the first free room she can find. Mark doesn't question the fact that he is suppose to follow, and with a sharp order to the audience to get back to work, he closes the door to the supply closet and locks the door.

Arizona's breathing has increased again and it feels like she is drowning. No matter how hard she fights to stay above the water, it's not enough.

With a softer tone, Mark tries again. "It was an-"

"Don't say it." Arizona cuts him off, whirling around to meet his gaze in the dim light. "Man-whores don't get to privilege of speaking."

Now Sloan's feathers are ruffled and he goes on the defensive. "Hold up now Blondie. You don't get to be pissed, alright? You left. She was heartbroken and falling apart. You left her."

"I know!" Arizona cries, tears suddenly springing from her eyes. "I know I left! I fucked up! I made a mistake. A mistake that I have to live with for the rest of my life. Getting on that plane was the stupidest move I have ever made, but I came back. …For her." The last few days replay in her mind, and she remembers crawling up to this man in front of her on her hands and knees begging for help.

An empty chuckle falls from her lips. "Was this all a game to you, Mark? Huh? See how much you can hurt me? I know I hurt her. I hurt Calliope in a way I swore I never would and I have to live with myself because of it, but I came back. I'm trying to make it right. …But you! What did I ever do to you to deserve this?"

"This wasn't about you." Mark answers.

"Yes it was!" Arizona shouts, closing the small distance between them. "You sleeping with Callie was a big FUCK YOU to me."

"You would have rather her slept with someone off the street?" Mark asks, side stepping the blonde and putting some space between them. "Someone she picked up at the bar? Some other guy that she doesn't-"

"YES! YES!" The blonde cries, her voice breaking from all the emotion swirling around her. "Yes, a thousand times yes! Anyone but you! You're always there, Mark. You've always been there! Getting in the way, inserting yourself between Calliope and me! You lived across the hall! You walk into our apartment without knocking. You walk into our bedroom! You're always fucking there, and I hate it."

After a beat of silence in which Arizona uses to wipe the tears from her cheeks, she whispers "I came back for her. …This would have been so easy. Even if she was pregnant, it would have been easy. I want a life with her, Mark. I've always wanted a life with her. But now? Now I have to figure out if I want a life with you. Do you know how hard it is for me? Did you know how hard it was for me to watch you and her together? Knowing that you two used to be… what you used to be? And now I'm faced with either losing the woman I love or sticking around and raising your two's love child. Every morning I will wake up and see that baby's face and have to be reminded of what I did. Most people get to forget their mistakes, Mark. You've gotten that, right? You've had your slate wiped clean more than once. But me? No. Not only do I have to work with you, and live across the hall from you, but now I have to have a life with you. And it makes me sick."

"I didn't plan this." Mark says, the throbbing in his face making him see stars. "And if I had known what would happen, I wouldn't-"

"You shouldn't have in the first place!" Arizona snaps. "You say you're her best friend, and yet you sleep with her when she's drunk and vulnerable? Tell me how that is being a good friend. Tell me how you have treated Callie any different than the hundreds of other women you've screwed over the years. If you cared for her half as much as you claim you do, you would have sent her back to bed. You would have given her a shoulder to cry on, and not…" The vision of Callie and Mark naked and sweating and moaning fills her mind and Arizona has to suppress the urge to vomit.

Shaking herself and taking a deep breath, dark blue eyes stare up at the man who she thought was a friend. "You touch her again and I will make sure you're pissing into a bag for the rest of your life."

The two's gaze last for one last second before Arizona unlocks the door and exits the supply room, leaving a very disorientated Mark Sloan alone to ponder what the hell he did. And if he will ever survive the wrath of Arizona Robbins.