Disclaimer: I own nothing except my imagination.

a/n: Alright so a guest reviewer on Family Chaos thought that I should write a story about Kelly and Christie meeting up for the first time but since I don't have time to fully invest in another story, I decided to make a OS out of it. So basically it'll be about Kelly and Christie bumping into each other on a run (like I wrote it in Family Chaos) and it will lead up to the moment when the twins tell Matt that they saw Christie and Kelly kiss. I hope you guys will like this effort.

Kelly laced up his running shoes like he did on every morning following a shift at firehouse 51, Shay already snoring loudly from her room, making Kelly chuckle. It was inevitable that she fall asleep as soon as they made it home so it gave him the opportunity to run while she rested up so they could do something together after they both woke up.

We walked down the stairs of their building and hopped into his car and drove off to where he would usually start running by the water. He made sure his shoes were tied properly and secure some music in his ears to keep the rythme, dropped his car keys into his pockets and he was off. The sound that his feet made against the asphalt was rythmic and steady, his breathing matching and the music keeping him from slowing down his pace. He was faintly aware of all the other people around him but was surprised that there were so many this early in the morning on a saturday morning.

He looked at his watch to see that he was already running for the better part of the hour but the lack of sleep from last night's shift and the fact that he hadn't eaten breakfast yet couldn't stop what was about to happen. The collision was inevitable but his quick reflexes allowed him to catch the person before he or she fell to the ground. His hands had a firm grip on the person's forearms and he finally let himself look to see that it was a woman and his heart instantly started beating faster.

"Christie?" He helped her steady herself before he let go of her and removed his headphones. "I'm sorry about this, I didn't see you."

"It's my fault really, my attention was somewhere else for a second." She smiled. Her cheeks were slightly flushed from all the running and a few beads of sweat were rolling down her forehead. Kelly didn't understand why his heart was beating the way it was but he was pretty sure it wasn't because of his run.

"What are you doing running so far away from where you live?" The rest of the people in the area were now invisible to him.

"I come here to run all the time. It allows me to keep my mind off of everyday stress."

"Yeah I heard, I mean I'm sorry about what happened."

"I figured Matt would have talked to you about it." Christie knew how close her brother and Kelly Severide were so she wasn't surprised that he knew all about her divorce from Jim and how Matt had helped her get the settlement she deserved. He looked at his watch as a nervous habit.

"Are you done running?" He asked, moving the subject away from her fresh divorce.

"Yeah why?" Christie smiled, not sure where he was taking this.

"Join me for breakfast?" He suddenly found himself asking her.

"I don't want to keep you from your day, I know you just got off shift." He was surprised that she knew that information but he tried not to show it. "I know because I keep track of Matt's rotation and I know that you guys are on the same shift." He wasn't sure if he detected a hint of nervousness from her or not but he gave her a reassuring smile.

"You're not keeping me from anything, Shay is out like a light." He chuckled. "There's a small place close from here that serves great stuff for breakfast, it's walking distance from here." He suggested.

"That would be great." She smiled at him but sense something was bothering him. "Violet is at a friend's house, no one is waiting on me either."

"Ok I was scared about that." They walked towards the restaurant making small talk while they let their hearts rest from their run. Like the perfect gentleman that Kelly was, he opened the door for her and they were taken to a table and offered some coffee which they gladly too and they took a menu, looking at it in silence. Kelly was quickly decided and he closed his menu, his eyes fixed on Christie. He couldn't see much because the menu was covering half of her face but her eyes mirrored Matt's blue ones and she had the same little wrinkles at her eyes that he did that became more evident whenever he smiled broadly.

"I can see you staring Kelly." She smiled, bringing her menu down.

"Sorry." He blushed. The fact that he had been caught looking was making his heart beat faster. "I was just." He stammered lightly which was out of character for him.

"Trying to look for differences between me and Matt?"

"Yeah." He wasn't lying but this was the easiest to avoid more questions.

"Find any?"

"Not quite sure yet." He smiled at her before she returned to her menu a few minutes longer. She ordered a plate of homemade waffles topped with a mountain of fruit and Kelly took the typical hungryman breakfast with eggs, toast bacon and a few other things. The waitress came to refill their coffees while they waited for their food to arrive and Christie suddenly grew quiet, her mind clearly elsewhere. "Am I that boring?" He teased, gaining her attention, making her blush.

"No." She smiled back at him. "I have a lot on my mind."

"Divorce?"

"It went through but Jim is trying to make it hard for me, hence the run."

"I thought Matt fixed all of that." The waitress arrived with their food.

"He did. I wouldn't have all I'm getting as a settlement if it wasn't for him but he keeps calling me or driving by the house. I don't know what he wants and I'm still trying to figure out what I should do about it."

"Have you talked to Matt about it?"

"I don't want to worry him and he's done so much already." She poked at her fruit aimlessly, trying to figure out what to do with all of this.

"Christie." He sighed. "You have to tell Matt about this because you know that he'll blow a gasket if he finds out from somewhere else."

"Just promise you won't tell him." In all the times Kelly had seen her apart from when she was going through her separation, he had never seen her so serious.

"Only if you promise me you'll tell him soon."

"You drive a hard bargain Kelly Severide."

"Good because your brother would kill me if I knew this information and didn't pass it along."

"You're a good friend to him Kelly. How's it going at 51? Is he being careful out there?" She steared the conversation away from her own problems.

"As careful as he can be. He wouldn't do anything that would seperate him from the girls."

"I know. And things seem to be going well with Gabby."

"It's the most happy I've seen him in years, they're good for each other."

"I'm really happy for him."

They finished breakfast laughing and after a little arguying on both sides, Kelly took the bill and they walked back to their cars. Kelly watched as she drove off, his mind on what she had said about Jim coming around. He sat in his car and drove back home, trying to figure out if he should tell Matt about this or if he should give her a little more time to tell him herself. When he got home, all he wanted was to grab a shower and a few hours of sleep but Shay had other plans.

"You've been gone forever, where were you?" She was sitting at the kitchen bar drinking some coffee.

"You were out when I left so I grabbed breakfast."

"Who's the girl?" Shay could read me like an open book.

"I bumped into Christie on my run and we grabbed a bite to eat."

"Christie. You've never dated a Christie before." She teased.

"Christie Casey Shay." He opened the fridge to grab a bottle of water.

"What the hell Kelly? Have you completely lost your mind?"

"Calm down Shay, nothing is going on between us."

"You're telling me that a beautiful girl like Christie Casey does nothing to you?"

"That's not what I said but nothing is going on between us. I just bumped into her on my run."

"Just don't do anything that might anger Casey would you?" She turned around and walked up the stairs to her room.

"Yeah like keeping a secret from him." He mumbled, his mind clearly not letting him forget about his conversation with Christie. He finished his water bottle and took the same way up the stairs as Shay, hoping that a shower would clear his mind. The cold water against his skin only helped in washing the sweat off his body but the words kept replaing in his mind like a loop, each time weighing more on him. He didn't know if he should tell Matt or not and Shay's words kept reminding him that getting on Matt's bad side wasn't ideal either. Ultimately, he decided to give Christie the time she had asked for to tell Matt.

The next 48 hours went by quickly and the next thing Kelly knew, he was walking through the apparatus door, half of Squad already sitting at their table.

"Morning lieutenant." Capp called but Kelly mearly mumbled a hello before heading to his office. He walked through the common room and scanned the room quickly before he continued his way into the back where he could hide in his office, Matt not in his and he was thankful for that. He was afraid that Matt would see right through him and he didn't want to betray the trust Christie had put in him.

"Are you ok lieutenant?" Kelly looked up to find Capp in his doorframe.

"Yeah why?" He leaned against his chair, his arms over his chest.

"You looked like something was on your mind when you walked in."

"Sorry, busy 48 hours."

"Alright." Kelly could see the concern on his friend's face as he turned around to leave, Matt walking into his office, Kelly returning to his report.

Kelly was able to steer clear of Matt for most of the day except for when they were on a call but after the last one, Matt was the first to intrude on his office space.

"You ok Sev?" Matt had rarely seen Kelly distracted on a call and although nothing serious had happened, it could have.

"Yeah, why?" He tried to act normal.

"Are you seriously going to sit there and pretend like that didn't just happened out there?" He pointed towards the exit.

"Matt it's fine, nothing happened to me."

"Thanks to Capp. Come on Kelly, something is going on with you and you need to talk about it." He pressed.

"It's nothing, just Benny acting up again." He lied easily. Matt squinted at him and tried to read him but couldn't.

"You sure that's it?" He tried again.

"That's it. It'll blow over like it always does."

"Alright, just be more careful out there."

"Promise." Matt left him alone again and he huffed, putting his head in his hands. Clearly Christie still hadn't told him about Jim and the more time passed the more he was becoming uncomfortable with the fact that he knew and Matt didn't. The rest of shift went by without a hitch and he debated for a while in his car about what he needed to do about it so he decided he'd swing by Christie's place. He had managed to track her down easily on the web because asking Matt would only raise questions and he didn't need that now. He drove slowly, looking at the addresses on the houses and he parked on the curb and noticed a man at the door. The closer he walked to the front of the driveway, the more he could hear what it was about.

"Come on Christie, open up, we need to talk." He was banging on the front door. Kelly walked closer and realised that it was Jim, Christie's ex.

"Can I help you with something?"

"Mind your own business."

"I'm pretty sure this is my business. Christie doesn't want anything to do with you and I think she's made it clear to you before." Jim was now facing Kelly.

"She can't keep me away from my daughter." Kelly easily moved past Jim, getting between him and the front door. He knew by the car that Christie was home but he didn't want to take the chance for him to be able to get inside.

"You brought this on yourself."

"She can't keep me away from her." Jim tried to get past Kelly but Kelly wouldn't have it.

"You'd better get out of here before I call the cops for harrassment and trust me I know a lot of people at the CPD."

"This isn't over." Jim finally gave up knowing he wasn't getting anywhere.

"Trust me it is." Kelly warned as he watched Jim walk back down the stairs and back into his car. He made sure he drove off before he turned and softly knocked on the door.

Christie had seen all the commotion from behind the front door so she knew that it was safe now to open the door.

"Hey, are you ok?" He held her gently by the arms, her body slightly shaking.

"Yeah I'm ok, I'm just happy that Violet is with a friend today."

"How long was he here for?"

"Twenty, thirty minutes maybe. I'm not sure."

"You should have called the cops as soon as he showed up here."

"I was scared, I didn't know what to do." Kelly excused himself and went into the kitchen. After a few fruitless attempts, he foud a glass that he filled with water and gave it to her.

"He said something about not being able to see Violet."

"I filed a restraining order against him."

"That's good but if he comes back again, you have to call the cops."

"I will, I promise."

"Ok but I'm staying with you, at least for a little bit."

"You don't have to do that, I'm fine now."

"You won't get rid of me that easy." Kelly sent a quick text to Shay saying an emergency had come up and that he wouldn't be home until later in the day before he returned to Christie.

They talked for a little while, Christie telling him all about how she had gotten the restraining order after they had parted ways a few days ago. Christie stopped shaking about an hour later as they kept talking, the stress finally falling away from her shoulders. They ordered pizza and ate it with a beer, Christie trying not to think about what was going on.

"Thanks for staying with me."

"It's not a problem." He insisted.

"I'm fine now, I don't want to keep you from your plans."

"I don't have any plans today."

"Liar." She smiled. "I'm fine Kelly, really."

"Are you sure?" He didn't really want to leave her here in case that Jim came by again.

"Yeah, I promise I'll call the police if he comes back."

"I want you to call me too if he does, I'm not that far away from here." He scribbled his number down on a paper on the coffee table and handed it to her. She took it with slightly shaking fingers and she stood up and they walked to the door.

"Thanks again Kelly. I'm sorry for bringing you into my problems."

"Anytime." He smiled at her. "Lock behind me?"

"You don't need to worry about that one." Kelly smiled at her before he stepped out of her house and waited until he heard the lock turn before he made it to his car and drove off towards his place. He could hear some soft music playing in their appartment as he walked in, finding Shay in the kitchen looking for a snack.

"Where the hell have you been?"

"It's a long story." He sighed. "Something happen?"

"You didn't even bother to check your phone did you?"

"No why?"

"Matt called me, saying you weren't picking up, he wanted to know if I'd seen you."

"What did you tell him?" He pulled his phone out of his pocket to find more than half a dozen missed calls from Matt since he left the firehouse.

"I told him you were out for a run but I doubt that'll satisfy him for long." As expected, his phone was ringing and Matt's name was flashing across the screen.

"Pick it up for christ's sake." She huffed and walked away, leaving Kelly to contemplate his phone a few seconds before answering.

"Hey Casey, what's up?"

a/n: Ok SOOOOO I know I said in my beginning's note that it would be a os BUT I was at 2500 + words and I realized that I was nowhere close to getting anywhere so I decided to turn this in a multi chapter fic. Now I don't know how many chapters it will be but like I said it'll end as soon as the story catches up to how it happened to Family Chaos. Please take a few seconds to review before you leave, I'm really looking forwards to hear your thoughts. - Sarra