Disclaimer : I don't own the characters !

Hello,

Here is a little O.S Caseride, which I hope you will like. Things go quickly between them, but that's the way it is. The characters don't belong to me, of course.


Chicago !

He was fed up with their constant arguments. They had been dating for a year, and even though each time they came back to each other, Matt couldn't take it anymore. It was not a life. Again, she was complaining for trifles. Ever since she found out she couldn't have children, Gabby had become unbearable. She put on a good face at work, making it seem like everything was fine, but once they were alone, she grew cold and blamed him for his lack of understanding and compassion that they could never have children together.

To be honest, Matt wasn't projecting himself that far with her. They weren't even engaged. For some time, his heart and his mind were elsewhere, towards someone else. He couldn't go on. No, it was over. The first thing he did when he got home was go to the bedroom and pack his suitcase. Yes, the apartment was his, but he didn't want to stay there a minute longer.

"What are you doing ? »

"What do you think i'm doing ?" he snapped, going into the bathroom to retrieve his toothbrush. "I am leaving. It's over."

"What ? Are you letting me down after everything I'm going through ?"

"See, that's part of why I'm leaving." he said, closing his suitcase. "You always bring everything back to you. I'm sorry you can't have kids, I sincerely am, but I'm sick of it all getting in the way. As if all the evils of the earth were my fault. But you know what ? It's over. I'd rather leave than hear your reproaches about my way of taking your diagnosis again."

"I knew it, you don't care about me. About us. If you really loved me you would stay and help me find a solution."

"But there isn't, Gabby ! I can't snap my fingers for you to miraculously get pregnant, and we've only been together for barely a year. It's too soon to think about that." The tone had risen, but he calmed down. "At least it is for me. We're not even married, Gabby."

"Then let's get married !" she said, approaching him.

"Oh no !" he said, pulling away. "After everything you've been throwing at me for months, I don't want anything to do with you anymore. Call me heartless if you want, but I no longer have the strength to bear your tantrums. I am leaving. I'll give you a month to find yourself an apartment."

Grabbing his suitcase, he left his apartment under Gabby's incessant calls. He didn't turn around and got into his pick-up. There is only one place he wanted to be. Only one person he wanted to see.

...

He was slumped over a replay of a hockey game, the pizza box open on the coffee table, and a beer in his hand. Kelly wasn't really watching the game. He kept thinking about of the Ladder 81's Lieutenant. Matt hadn't been the same for several weeks. He tried to assure that everything was fine, the Squad Rescue's Lieutenant was not fooled. He had noticed that something was wrong in his relationship with Gabby, the paramedic. He hadn't been thrilled to hear that they had gotten together, but all Kelly wanted was for his best friend to be happy, and he was. For a while. He didn't know what was wrong with them, but he would soon find out. By Monday, he would invite Matt to the station roof to share a cigar, and he would find out what was wrong. He was determined to find out the truth, and get him out of Gabby's clutches if necessary.

He couldn't say how he had come to fall in love with his best friend. He's always thought Matt Casey super hot, but he didn't want to ruin their friendship by showing his feelings to him. Bottom line, Kelly couldn't get a stable relationship, because every time he dated someone, whether it was lasting or a one-night stand, he only saw the face of the fireman. He didn't know if it was mutual, which is why he never took a step in that direction. Maybe he had been wrong !

Knock Knock !

He wasn't expecting anyone. Shift had been over for over an hour, and Kelly had no plans to leave home all weekend. He had no boat renovation planned. Getting up from the sofa, he went to open the door.

"Casey ?" he breathed. "What… what are you doing here ?"

"I'm sorry to show up unexpectedly, but can I crash on your couch for a while ?" Matt asked.

It was there that Kelly noticed the suitcase and the sports bag that his visitor was dragging. Did he left her ?

"Yes of course !"

He stepped aside and let his friend enter. He locked behind him.

"I'm going to prepare the guest room for you, you'll be better off there than on my sofa." said Kelly. "You're hungry ? There's some pizza left."

Matt's stomach growled.

"Come on, sit down. I'll bring you a beer, you look like you need it."

He put the bottle of beer on the coffee table, and let Matt eat and finish the pizza. It burned his lips, but he forced himself to shut up and watch the game. The time passed. The empty pizza box, and two beers later, Matt says :

"I broke up with her. It was time."

"What happened ?" Kelly asked, lowering the sound of the TV.

"About three months ago, she foud out that she could not have children. It shook her up a lot, and she started to resent me." Matt explained. "It made me sad for her, but part of me saw this diagnosis as a kind of kick in the ass. I mean, I haven't been in love with Gabby for months, and every time I tried to break up with her, something always happened. Shit, we haven't touched in months."

He took his head in his hands.

"Why did I make things go to far ?" he grumbled before looking at Kelly. "If I had come to talk to you as soon as it started to falter, I would have come out of it sooner."

"Ah, of course, I would have pulled you out of this trap quickly." smiled Kelly.

Their eyes met.

Matt loved Kelly.

Kelly loved Matt.

Their friendship was so important to them. Dating could change everything. It would be risky to be a couple, in their job.

"I…I'm going to get the guest room ready for you." Kelly said, after clearing her throat.

"Yes, uh, and I'm going to take a shower." Matt said standing up.

Matt took his toiletry bag and went to lock himself in the bathroom. Shit, he was hard. Like that. Without warning. He had seen a sparkle of desire in Kelly's eyes that he had never seen before, and it was meant for him. Matt forced himself to take a cold shower to try to get his erection back down, but he soon got cold so he switched to hot water. He closed his eyes and tried to think of something less exciting than Kelly's mouth. It half worked. Shit ! He got out of the shower, wrapped a towel around his waist, and brushed his teeth. He was exhausted, and he hoped that this fatigue would override his desire for his best friend. A desire he had felt for a long time. Coming out of the bathroom, he cursed himself for not having taken a change of clothes when he came face to face with Kelly.

"The guest room is ready." the latter breathed.

He let his gaze trail over Matt's half-naked body. It was far from the first time he had seen him like this, but each time it was a magnificent sight.

"Th-thank you !" the blond said. "I…I'm going to bed. Good night !"

"Good night !"

He grabbed his bags as he passed, and once in the guest room, he let out a long sigh. Shit, Kelly's gaze was on fire. Almost as if he was ready to jump on him to fuck him against the wall. And Matt probably would have let him. And now his cock was starting to act up again. Fuck it ! He took a slow breath, trying to regain some semblance of serenity and get rid of this erection. It took long minutes, but he managed to get soft again. Better that than being rock hard for a guy on the other side of that door. Matt opened his suitcase and put on some boxer shorts and a t-shirt before slipping under the duvet. Shit, his phone was left on the table. Leaving the comfort of the bed, he left the room and went to get his phone. Ten missed calls from Gabby, and a ton of messages.

Answer me !

Pick up your phone !

Come home. We will discuss and find a solution.

I need you to support me.

PICK UP THAT FUCKING PHONE!

And it still went on like that. He deleted all the messages, and turned off the phone. He was unwilling to call her back, let alone respond to those messages. He never wanted to see her again. Ok, they worked in the same station, but there was no question of getting back together with her. He should never have even gone out with her, in the first place. He turned to go back to his room, when the bathroom door opened to reveal Kelly, in a towel and dripping with water. Shit, he was hard again.

"Oh, I thought you were sleeping."

"I, uh, I just came to pick up my phone." Matt said.

He swallowed and licked his lips. The Squad Rescue Lieutenant was really hot. Matt was aware that his erection was showing, and damn it he didn't care anymore. He had barely joined Kelly when the latter grabbed him by the waist and pinned him against the wall.

"I'm not sure that's a good idea." Matt said, hands in Severide's natural, still damp graying hair. "We work together."

"Why would that be a problem ?" Kelly asked, his voice warm with desire. "We have the same grade, and now that I know you want it too, I'm not going to be shy."

Kelly kissed him, and Matt lowered his arms. He let himself be carried away by the kiss, and into the bedroom.

"I have never slept with a man." Matt confided. "I thought I was straight."

"Casey, we don't care about that." said Kelly. "I know that I want you, and that I fell madly in love with you. The rest, I don't care."

He tugged on Matt's t-shirt and took it off. What ? He fell in love with me ?

"If you don't want…" Kelly said.

But Matt tugged on Kelly's towel. Oh yes, he wanted to ! Admittedly, he had never slept with a man, but he was not stupid, he knew very well how it happened. Since the time he fed fantasies about Kelly Severide, he was not going to deprive himself of it now.

"Take off your boxer shorts. There's no reason I'm the only one naked." Severide growled.

"Take it off yourself !" Matt replied, sensually.

A smirk, carnivorous and eyes covered with desire, Kelly pushed Matt on the bed and climbed on top of him. He kissed him, then moved down his neck, but didn't dwell on it. There was no need to leave any evidence, if they had to keep this new affair to themselves. He caressed his nipples one by one with the flat of his tongue, before going lower. Matthew Casey was truly hot. He was less boxy than Kelly, but he had what it took, and he was trimmed just right. Arrived at his pelvis, he pulled on the boxer shorts, and took it off before getting back on the bed.

"Come back up a bit more, Matt."

Matt scooted to the bottom of the bed. Perfect, Kelly thought. He didn't think sleeping together so soon, when he had just broken up with Gabby, was a good idea, but nothing was stopping them from having fun. Leaning back on Matt, he stole a kiss.

"We are not going to go all the way." said Kelly.

"But…" Matt protested, but the other firefighter silenced him with a finger to his mouth.

"Listen to me Matt, I really, really want to make love to you, really, but we don't have to rush everything. I'm going to make you feel good, let you relax and then we'll sleep. And tomorrow morning, we'll talk more. You're okay with that ?"

"Yeah, yeah that's fine with me." Matt said.

It wasn't so bad that they took their time. Besides, Matt hadn't had sex since it started falling apart with Gabby. He had tried, even before they found out she was sterile, but she pushed him away every time. He understood that she was upset and sad, but he didn't accept that she was angry with him. He had nothing to do with it, and whatever he did wouldn't change that.

"Hey…" Kelly's hoarse voice brought him back to the present. "Are you still with me ?"

"Yes sorry." the blonde said. "I…uh…" He laughed. "It's been so long since I've been touched."

"It'll be fine, don't worry." reassured the other man. "I will take good care of you."

"Have you…have you ever done this with another man ?" Matt asked.

"Yeah, a few times." Kelly replied. "If it ever makes you uncomfortable, or if you want to stop, you tell me, okay ?"

"Okay !"

They shared a long kiss, sensual, languid, mingling their tongues. Matt swore it was the best kiss of his life, and it didn't leave him the least bit indifferent. His body reacted to Kelly's like a magnet. His cock was as taut as a tent peg and hard as rock. When his brand new lover stooped down there, he knew. I'll take good care of you… He understood very well what he meant by that. Matt couldn't say when his last fellatio was. He had never had one with Gabby. Once with Hallie, but that's it. He jumped when Kelly's tongue brushed the tip of his cock. Damn, he wasn't sure he'd last long.

Kelly had no hold back or shame when it came to sex. If he wanted to do something to his or her partner, he did it, even if he or she stopped him or her in the middle, which never happened. The moan Matt let out made him smile, because it wasn't negative in any way. Especially since Matt rippled his hips. Pleased with the effect, Kelly slid his tongue down his thick length. He took it in his hand and swallowed it. His mouth closed over it. There was no turning back. Neither for Kelly, nor for Matt. After that, their friendship will never be the same. They both knew it, and yet, that didn't stop them from continuing. Kelly continued to suck Matt, and the latter did not ask him to stop.

He had fantasized for month about his companion. When he was in Gabby's arms, on the last happy moments they had shared before everything started to fall apart, Matt saw the face of the Squad Rescue Lieutenant. He was the one making him come. Not Gabby, and he blamed himself a bit for continuing their relationship when his heart and mind were obviously elsewhere. After a while, he felt a tingle in the small of his back. He hadn't felt it in too long.

"Kelly, Kelly I'm going to… oh shit I'm going to cum !"

"Hmm, great. Let yourself go !" whispered Kelly, taking his dick back in his mouth.

Eyes rolling in their sockets, Matt felt his body surrender, and his climax exploded. He wasn't sure he'd ever come so intensely.

Kelly swallowed and sucked in every drop of cum, letting his lips trail over his glans for a few seconds before rolling up his best friend/lover's body. Matt was completely out of phase with this orgasm, as if he hadn't come in ages. It was, in fact, and Kelly prided himself on having made him cum so violently.

"How are you feeling ?" he asked her.

"Hmm, perfectly fine." Matt replied. "Do you have any other hidden talents ?"

"It might well be." smiled Kelly. "I'll give you the benefit."

On a post-coital cloud, Matt smiled and saw that Kelly had not come.

"You…you want me to…uh..."

The other man smiled at her hesitation.

"You don't have to." Kelly straightened up and sat down, leaning against his head. "I can handle it just fine myself. You can watch, if you want."

Oh fuck ! Matt mimicked Kelly's position, but his gaze never left the other man's cock. Kelly had taken his cock in his right hand, and he was stroking it up and down, deliberately going slow. He could do this for very long minutes, make the pleasure last until he came, and the only thing that could make him cum faster and harder would be for his mate to join the party. He closed his eyes and concentrated on his pleasure.

Matt couldn't look away. Kelly's cock was long and massive, and his mouth was watering. He had never thought that one day he would want to swallow another man's cock, until he started to have feelings for Lieutenant Kelly Severide. It was by hearing him blow Matt, so low but he heard it, that his decision was made. He leaned down and, when Kelly's hand was at the very bottom of his cock, he kissed the tip of his glans.

Kelly jumped, but he recovered very quickly and, with one hand on the back of Matt's neck, guided him until he engulfed him gently. He let go of his cock, and Matt took it in his left hand. He had never done that, but he let himself be guided by his desires. By his desire to do good to Kelly.

"Am I doing it right ?" he asked, panting.

"You're perfect." Kelly said, rubbing the back of his neck. "Keep going !"

Matt took it back between his lips, kissing his enormous length to his testicles, which he licked. Sucked up. He slid his tongue from the middle of his balls to the tip of his glans, and swallowed it again. He was careful not to let his teeth get in the way, and gradually managed to take him deeper and deeper. He expected to feel some kind of nausea, but no. He had no gag reflex. Matt renewed his hand around Kelly's sex, his own hadn't left his neck and sometimes wandered in his short blond hair, and stroked it long enough to regain some semblance of breath. A white pearl appeared. Matt picked it up on the tip of his tongue, and the taste made him want more. He plunged Kelly's cock back into his mouth, sucked it in while polishing it with his hand with a frenzy he didn't know he had. Kelly's moans sounded like cavernous grunts that turned him on. The firefighter's seed spurted out, and Matt didn't leave a drop.

Satisfied both, Matt laid his head against Kelly's stomach. Wow, what just happened was indescribable and wonderful. He wasn't gay or bi or anything. He never felt same-sex attraction, but Kelly was an exception. But hey, he didn't have to put a label on that. What happened between the two men was nobody's business, and he was not having an identity crisis. He had simply fallen in love with Kelly Severide.

Shit !

It's true, he was in love ! It was one thing to know that he was constantly thinking of him when he was in his ex-girlfriend's arms, it was another to realize that it was more than just a desire. It was love. It might shock him to have such a revelation, but Kelly had told him that he had fallen madly in love, too, so he relaxed. Matt stroked the grooves of the other man's abs with his fingertips.

"Are you sure you don't want to go all the way ?"

"I would change my mind if you hadn't sucked out my brains along with my sperm." he joked.

What should Matt have to say ? He felt like he couldn't think properly anymore.

"Can I sleep with you ?" he asked.

"Yes of course." said Kelly. "I'm not going to kick you out of my bed now."

Before going to bed, they took turns going through the bathroom. Matt picked up his boxer shorts, and before he could even decide whether to put them back on or not, Kelly came up behind him, took them from him, and threw them across the bedroom. The question was settled. They slipped naked under the duvet, and Kelly immediately attacked Matt's mouth with his. They would talk tomorrow morning, after a good night's sleep, but neither of them regretted what had happened.

...

BANG BANG BANG !

What was that racket ? Someone was pounding on the loft door, and woke the two men, whose legs had become entangled in the night.

"Kelly…" Matt muttered.

"Yeah, I'm awake." he grumbled. "You better go to the guest room, just in case."

Yeah, that wasn't a bad idea. He got up, reeling from sleep, put his underwear back on, and crossing the living room, he picked up his phone.

BANG BANG BANG !

Kelly hated being woken up like this. Unless it was a matter of life or death, he was sure to curse whoever was pounding on the door. He jogged, and put on a t-shirt before going to open.

BANG BANG BANG !

"YES I'M COMING !" Kelly shouted.

He opened the door.

"Antonio ? Are you crazy ? Why are you knocking on my door so early ?"

"I'm looking for Matt. He hasn't come home all night and my sister is worried." said the police lieutenant. "I saw his pickup downstairs from your house."

Of course Gabby had gone to see her dear brother. Rolling his eyes, Kelly turned his back on the policeman and called Matt, who came out of the guest room. He had put on jogging pants and his fireman's hoodie. The fatigue was still visible on his face.

"Antonio ?" he wondered, before sighing. "Gabby asked you to hunt me down."

"She's worried about you." said Antonio. "She called me in the middle of the night because you weren't answering your phone. She says you left without explanation."

From the kitchen, Kelly let out a sneer, which almost made Matt chuckle.

"You found me." he told the cop. "But didn't your sister tell you that I broke up with her ?"

"What ?" Antonio said. "You're dumping her like that, without explanation ?"

"Without ex…" Matt huffed. "Seems that your sister only tells you what she wants. It's been weeks, shit, months that nothing has been going well with her. I thought it would work out, even though I didn't feel anything for her anymore, but I stayed, to support her while she got through what she learned, but I couldn't take myself anymore to be handle responsible for everything that happens to her. »

"What are you talking about ?" Antonio asked.

"You better talk to her about it."

"I'm asking you." the cop cut him off.

Shit, that wasn't how Matt had planned to spend his morning. He was thinking of waking up in Kelly's arms, and to extract from him a warmer cuddle than the one they had shared the day before.

"Three months ago, she learned that she could not have children." Matt explained. "And she's mad at me."

"Why ?" Antonio asked. "And why did she never tell me that you are trying to have a baby ?"

"Because we weren't trying anything at all." Matt replied. "She is angry with me because in her eyes I am not as devastated as she is. Of course I'm sad for Gabby, but she and I haven't been together long enough for me to think about starting a family with her. She's your sister and you have to protect her, I understand that, but there's no way I'm forcing myself to stay with her, and above all, I couldn't stand the arguments anymore."

He could see that the police lieutenant was shocked by the news.

"Don't ask me to go back to her or give her another chance. I am no longer in love and…"

"No uh, you don't have to force yourself if you're convinced you don't feel anything for my sister anymore." Antonio cut him off. "I…I'm going to tell hier that I found you, that you're fine, and I'm going to try to calm her down."

"Yeah, good luck with that. Matt said. "Uh, I give her until the end of the month to leave my apartment. If she doesn't want to leave, I'll go get the rest of my stuff."

"Yeah, I'm taking care of her." said Antonio. "Okay, I have to go."

"Don't tell him where I am." Matt said.

Antonio nodded and left. Matt locked up, and joined Kelly in the kitchen, who was preparing breakfast.

"This girl is unbelievable." he got angry. "I told her that it's over, and she spouts her brother to find me ? No, but she's completely crazy. I don't know if I'll bear to work with her."

"You just have to go to Boden and explain the situation to him." Kelly suggested. "But in the meantime, we'll have breakfast..." He turned off the gas, poured scrambled eggs and bacon onto two plates, then walked around the counter and grabbed Matt by the waist. "…and we go back to bed."

Yes, that was a program that pleased Matt well.

Empty plates, and a good cup of coffee each, they cleaned up the kitchen and Kelly lifted Matt over his shoulder. Laughing, he let himself be transported and then laid on the bed.

"So, what are we going to do now that we're awake ?" Kelly asked.

"Um, we could make love." Matt offered.

"Yeah, we could." said Kelly. "But I want you to know that I can't be your friend again like before, if we go all the way. I told you yesterday, I'm in love with you."

"And I realized that it was the same for me." Matt said. "We just have to take our marks. It's going a little fast, it's true, but it's been a long time for me since I was no longer in a relationship with Gabby. I kept thinking about you."

"We are together now. Hey, I have an idea. Instead of going back to your apartment alone, why don't you move in here ?" Kelly offered.

"Ooh, you're fast !" laughed Matt, who was titillated at the idea of living with him. "Um, let's say we give it a try for a month, and if we haven't killed each other by then..."

"Oh stop talking !"

Kelly clapped his mouth against his. Stop talking, more action.

Clothes flew across the room, and they soon found themselves naked. Kelly rummaged through his bedside table and pulled out a condom and lube.

"We're going to have to get tested." he said. "Even though my last checkup didn't show anything, and I haven't slept with anyone for over two months."

"Same for me, but you're right. Gotta get tested." Matt agreed. "You… uh, how do you want me ?"

"Turn over."

Matt turned around, and Kelly's body molded to his.

"It will be easier, for the first time." he whispered to him.

"I trust you." Matt said.

He was nervous, but didn't say it out loud. It would only serve to increase his nervousness. He had never slept with a man, unlike Kelly, there was enough to be stressed.

"Relax, it's going to be okay." Kelly told him.

He turned his head to kiss him. He then dropped a myriad of kisses along his back, then spread his buttocks. He was dying to slip his tongue in there and prepare him with it, but if he didn't burrow into it as soon as possible, he wasn't sure his cock would hold up. Straightening up to sit up, he poured some lube directly onto his anus, and placed his index finger there. Matt groaned, but didn't tell him to stop. Kelly smiled and continued to tease him, before slowly inserting his finger into his tight hole. He prepared it for long minutes, inserting a second finger and then a third when the time came. Matt felt deliciously torn. He had never felt anything like this. He couldn't imagine being able to feel such pleasure being invaded there.

"I think you're ready." said Kelly.

"Fuck yes !" Matt grumbled.

Kelly removed his fingers, took the condom and rolled the latex down his massive length. He put some lube on Matt's open hole, and on his own cock before laying on top of him. He positioned himself on top of him, and entered him with a single thrust.

Matt clutched at the cushion as best he could under the onslaught. It was different, and at the same time fabulous, especially since Kelly moved for the first time. He felt it out of his anus and back there gently. It was new, strange, fabulous, a little painful but so good. Kelly really took the time to go back and forth inside him, making sure his penetrations didn't hurt too much. It was his first time, he had to be careful, even though his orgasm was building more and more. He was close to come, but he forced himself not to be overwhelmed. Matt was his priority.

"Kelly…"

He shook his head and buried it in Matt's neck.

"I'm almost there." he said, panting.

So Kelly accelerated a little, then faster when Matt begged him to, and they came together.

...

He didn't want to get out of bed, but he was there alone. Maybe Kelly had gone to the bathroom, but Matt didn't want to be left alone, so he got up and got dressed. His body was throbbing, especially in the buttocks, but it was a delicious feeling. Remembering this special moment, he would not want to diminish it for anything in the world. On the contrary. A good smell of grilled meat was felt when he left the room, and he followed it to the kitchen where Kelly was cooking.

"Hmm, that smells good !"

"I hope you're hungry. said Kelly, who emptied a pot of pasta into a colander in the sink.

"Starving." Matt said. "You could have woken me up."

"True, I could have, but I thought I'd wake you up once it was ready." Kelly said, setting the empty pot back on the stove. "How are you feeling ?"

Wiping his hands, he reached over and took him in his arms. How romantic could he be when he got down to it !

"A little sore, but I'm not complaining." Matt said. "I love you, Kelly Severide, and I'm sorry I didn't find out sooner."

"I love you too, Casey, but I don't want our relationship to get in the way of us doing our job properly." said the other man.

"Would you like us to tell Boden ?" Matt asked.

"He could tell us if we risk anything." Kelly replied. "It costs nothing to talk to him, unless you think we are on the wrong track."

"No, you're right." Matt said. "Might as well know what awaits us. For you and me, it's not going to be the same as for Gabby and me. We are both lieutenants in the same station, and even if we each command our team, it is better that we have all the cards in hand."

"What if we can't have both ?" Kelly asked.

"I don't really want to think about it right now." Matt admitted. "Later, okay ? Let's enjoy this day, and we'll just have to call Boden tomorrow morning."

It was a very nice idea. The couple had lunch on the couch, watching a movie on Netflix. Sated, Matt fell asleep, and when he woke up, he was lying with his head on Kelly's lap, and the broadcast of a football match had replaced the movie.

"How long have I slept ?" he asked, not moving from his position.

"A while." Kelly replied. "I didn't think you'd be this tired, even after what we did this morning."

Matt cracked a smile.

"It's the whole situation with Gabby that wears me out."

"Yeah, the more I think about it, the more I think she's probably hiding something from you." said Kelly.

"Like what ?" asked Matt, who straightened up to sit up.

"Well, you never talked about having kids, and she finds out overnight that she's sterile ?" the other man expounded. "How could she have found out, if her visit to the doctor had not been planned precisely in this way, and without telling you about it ? Unless you knew…"

"No, she just told me she was going to do some routine checkups." Matt said. "Do you think she planned to get pregnant behind my back ?"

Kelly didn't answer. He shrugged. He didn't have all the answers, but it seemed like too big of a story.

"Why would she do that ?"

"Hey, that's just a guess." Kelly defended herself. "I'm not in Gabby's head..."

"I know, don't worry, and I trust your intuition." Matt reassured him. "Guess I'm going to have a serious discussion with her."

"Do you think she could ask you for an explanation at the station ?" Kelly asked.

"Knowing her, there is a big chance." Matt said. "We're going to have to talk to Boden before this gets out of hand."

"Do you want me to call him and ask him if we can see him today ?" Kelly offered.

"Yeah, might as well get it over with." the blonde sighed.

He let himself fall back on Kelly's lap, and wished never to move again. This whole thing with Gabby was getting ridiculous. He didn't want to procrastinate too much on why he didn't leave as soon as he realized he wasn't in love anymore, and move on with Kelly, but if Gabby had actually tried to get pregnant without tell him about it, then they would have another really big problem, because Matt couldn't trust her anymore.

"I hear you thinking." said Kelly.

"I can't stop thinking about what you just said, and I think I'm going to have a hard time working with her now." Matt said. "Even more if she really tried to have a child without telling me."

"You will have the end of the story very quickly." his lover promised him.

"I need to think about something else." Matt said, straightening up again. "Do you have any ideas on how to change mine ?"

"I have quite a few."

Kelly's voice had become drawling and full of innuendo. He grabbed Matt by the hips and pulled him into his lap. T-shirt and sweatshirt were removed. Upper body bared, Matt's desire skyrocketed and into his tight pants.

"Come here !" Kelly pulled him to his mouth. "Are we fucking here, or in the bedroom ?"

"Um, we just have to start here, and end up in bed." Matt said.

That's what happened. Matt coaxed Kelly's cock for very, very long minutes, more easily than the day before, but he hadn't made him come. Kelly had avenged himself by taking him into the bedroom, and using her tongue to lead him to the edge of the precipice. He had used it on his cock, his testicles and his anus. A new sensation for Matt, who had begged him to fuck him. What Kelly was quick to do after putting on a condom. He had dominated him the whole time, trapping his hands above his head, and kissing him whenever he felt like it.

The next morning !

It was ten o'clock when Wallace Boden, their Chief at 51, knocked on the door. Sitting around the table, a cup of coffee in front of each, Matt was the one who first explained to Boden his breakup with Gabby and the reasons, as well as the young woman's sterility. It was true that it was not his place to talk about it, but what other choice did he have? Boden had to have all the information. Then, he announced that he and Kelly were in a relationship. Boden didn't let show anything the entire time Matt spoke.

"There, you know everything." Matt said.

"We prefer to talk to you about it, and to know what our options are." Kelly interjected. "Do we have the right to work and be together ?"

"Well, since you're both lieutenants and each of you lead your team, that shouldn't be a problem." Boden said. "However, I think it might put a damper on some prospects in your careers, like promotions. Casey, I know you'd like to be Captain, which would put Kelly under your command."

The couple knew what that meant. They exchanged a look.

"I don't think I'm ready to be captain." Matt said. "My current position suits me."

"Well, I'll wait a bit before notifying the Department that two of my firefighters are dating. I want to make sure that nothing will change on the field." Boden said.

"We'll leave our privacy in the parking lot." Kelly promised.

"You don't seem surprised, for both of us." Matt said. "I was still with Gabby until two days ago."

"I have eyes, Casey, and it didn't take long for me to realize that nothing was right between you two." Boden said. "And so is Kelly and you. But that doesn't concern me."

"Chief, it might be complicated for our next shift." Matt said. "Gabby does not accept that I left her, she even sent Antonio to find me, telling him that I had left without explanation. She's gonna want me to give some to her at the station."

"Come early, and I'll call Gabby to my office. The four of us will have a conversation." Boden said.

He left.

"He's more observant than I thought." Matt said. "Nothing escapes him."

"Nope !" Kelly picked him up and sat him down on the table, making him wince slightly. "What ?"

"Nothing, it hurts a little, it's nothing." Matt reassured him.

"Okay, but I'm going to hold back on jumping on you until the pain wears off." said Kelly. "I'm sorry, I've been getting carried away since you…um."

Matt cut him off with a kiss.

"Don't apologize, I loved every second of it, but I'm not against a day off."

"Okay !" Kelly giggled, before getting serious again. "Matt, I love you, but I don't want that to stop you from getting a promotion. You would make an excellent Captain…"

"And I don't want to be if it means giving up on you." Matt replied. "I refuse to put my career before my private life. And I know you're not likely to become Captain, you hate paperwork."

"Don't talk to me about it." grumbled Kelly.

And he was right. Being a lieutenant was more than enough for Severide.

"Um, just to be clear, just because we're not having sex today doesn't mean you can't kiss me." Casey warned him.

"I wasn't planning on giving it up." said Kelly.

Station 51 !

"Hey guys, do you know if Matt arrived ? I haven't seen his pickup." Gabby asked the rest of the team in the conference room.

"Uh, you didn't come with him ?" asked Hermann.

"Uh no." Gabby replied.

"Gabby !"

Connie, Boden's secretary pointed to the paramedic.

"Boden wants to see you in his office."

"Oh, okay !"

Gabby left the conference room, to the astonished gazes of the others, and followed Connie to the chief's office. What was Gabby's surprise when she saw Matt inside.

"Close the door, Connie. Thank you !" Boden said.

"I…I haven't seen your car." Gabby told Matt.

"I didn't take it." he answered. "I came with Severide. We need to talk."

"Yes, that's all I ask." she said smiling. "But in private, it would be better, right ?"

"No, I prefer that there are witnesses for what I have to tell you." Matt said.

That's when Gabby noticed Severide, sitting on the couch in the corner.

"What is he doing there ?" she asked.

"Pretend I'm not." Severide said.

"Gabby, I told you it was over."

"Matt…"

"I told you it was over." he cut her off. "Did I, yes or no ?"

"Yes !" she said after a few seconds.

"And you send Antonio to find me, telling him lies." he continued. "I had to turn off my phone all weekend, and it's saturated with calls and texts, all from you."

"If you had given me a chance to pick up the pieces and…"

"But I don't want to pick up the pieces." he said, cutting her off again. "Gabby, it's been months that nothing goes right between us, and it's been long before you found out you were sterile."

"Great, why don't you shout it from the rooftops while you're at it ?" she snapped. "It's nobody's business but me."

"Not when you blame me for that." Matt replied. "You blamed your misfortunes on me, hoping that I would mope with you, but you can't expect such a thing from me. We never talked about having children…"

"Well I was !" she exclaimed. "I've been thinking about it since the day I met you, because I love you and want to spend my life with you."

"Don't you think it's something we decide together ?" he asked. "Did you try to have a baby behind my back to make sure I stay with you ?"

He'd made that accusation to see Gabby's reaction. Shock, her eyes widening for a second as if caught red-handed. It was then that Matt understood that Kelly's intuition had proven correct.

"What did you think ? That I would marry you when I no longer have any feelings for you ?"

"Don't say that." Gabby took a step towards him, but he backed away. "We can work things out. »

"I'm not in love with you anymore, Gabby, and I'm starting to wonder if I really was." he confessed. "Don't speak to me again, unless it's a professional matter."

Matt left the office, and walked into the conference room, doing his best to hide his rage. He really needed to get it out.

In the office, Severide had left right after Matt, and Gabby wanted to follow suit, but Boden ordered her to stay.

"For the sake of this team, I strongly advise you to leave Matt alone on and off duty. He was clear with you, and you have to respect his decision."

"With all due respect, Chief, this is none of your business." Gabby said.

"If you decide to settle your personal accounts in my station, then yes, that's my business." Boden said, firmly. "Matt made it clear, the rest is up to you. You can dispose."

After the debrief in the conference room, Matt isolated himself in his office until the alarm sounded. Rescue and Ambulance went to the field.

Knock Knock !

Lying on his bed, Matt looked at his visitor. It was Hermann.

"Permission to come in, Lieutenant ?" he asked.

"Yes of course."

Matt sat up but stayed on the bed.

"What is it ?"

"I noticed it was tense, with Gabby for some time." said the older of the two, who went to sit on the desk chair.

"Was that so blatant ?" Matt laughed.

"Well, a little bit." Hermann said. "You are no longer together, am I right ?"

"No, I ended it on Friday, but it's been several months since I felt like I was single." Casey confessed.

"Was ?" Hermann raised.

"I have feelings for someone, and it's mutual so… I didn't stay single for long." Matt said.

"Is it someone I know ?" Hermann asked, smirking.

The young firefighter let out a laugh. Of course, if Boden noticed that the two lieutenants had feelings for each other, the rest of the team – or at least some of them – must have noticed too.

"You know him well." Matt smiled, emphasizing the him. "But, you keep it to yourself. We're not gonna let our relationship interfere with work."

"Count on me ! "Hermann said, standing up. "And, it's worth what it's worth, but I'm happy for you. You weren't with Gabby anymore, we all saw that."

"Thank you, Christopher !"

Alone in his office again, he lay back and thought about the weekend he had just spent, and the quick meeting in Boden's office.

His feelings for Gabby had come as quickly as they had gone. To wonder if he had really been in love with her. With hindsight, and the events of this weekend, he came to the conclusion that no. She was a nice girl, at first, but as soon as they got together that's when he saw her real face. She had moved into his home very quickly, monopolizing his space and his life. Initially, it was cool, and the sex was really great, but he always took precautions and refused to have sex without protection. She may have tried to have a baby behind his back and had probably stopped taking the pill, but that would never have happened. Unless the condom does not hold during the act. How could she have thought that would make him stay? Even if she could get pregnant, and it had happened, Matt could never have forced himself to live with a woman without love, even for the needs of his child. He wouldn't have run away, on the contrary he would have taken his responsibilities, but in no case would he have stayed with Gabby.

He shouldn't think about it anymore. It was over with Gabby Dawon.

He was with Kelly now. To say that it only took him one night to realize that he had fallen in love with his best friend for several months. What was happening with him was exhilarating.

"Hey !"

Raising his head, he saw Kelly in the doorway.

"Hey !" Matt said. "How was the call ?"

"Oh, like clockwork." said Kelly. "A jerk who nailed his hand to the railing he was building."

"Ouch !" Matt grimaced.

"How do you feel since you found out I was right about Gabby ?" the Rescue fireman asked.

"I'm fine, and I'm glad I no longer have feelings for her, because it would have hurt me more to learn that she wanted to trap me to keep me." Matt replied.

"She's going to be unbearable when she finds out about you and me." said Kelly. "Not that I care what she thinks…"

"Neither am I." Matt said, getting up from the bed.

Although the urge to touch Kelly was great, he kept a distance that his office allowed him.

"I have no regrets." Matt said. "Whatever other people think, about how and how quickly we got together, we don't care. When we set foot in the station, we're Lieutenants Casey and Severide, the same ones we've been for years. And as for Matt and Kelly, what they do outside of work hours is nobody's business."

"You've gained confidence since this weekend." Kelly agreed. "I'm slightly excited."

"Slightly, is that all ?" Matt said, raising his eyebrows.

"We're at work, so I'm forcing myself to think about something other than you..." Kelly leaned over to whisper, "...naked begging me to fuck you against the wall."

"I would prefer the shower screen, but the wall is fine too." Matt whispered in response.

Kelly took a step back, smirking.

"I'll save that idea for later." he said.

"I should hope so !" Matt said.

Alarm…

Fire engine 51, Ladder 81, Rescue 3, Ambulance 61, Battalion 25, fire at…

...

21h30 !

Just back from their long exhausting day, Matt and Kelly had gone to the bathroom. They kissed for a long time, languidly while the hot water flowed over them and the vapors invaded the bathroom.

"Hmm, we really need to get tested." Matt said. "So you can fuck me against the wall."

"Yeah, we'll go tomorrow." said Kelly. "Are you good enough for me to make love to you tonight ? I promise to take it easy."

"Yes, I've been waiting for this since you woke me up this morning."

At this memory, Kelly smiles. He hadn't made love to Matt, but he had woken him up with a single finger, which he coated in lube before slipping it between his ass.

"Next time, I won't stop at one finger. "said Kelly. "And don't hesitate to return the courtesy, if you feel like it."

"One day maybe, but for now we stay like this. You taking charge and doing amazing things to me." Matt said. "I'm sure you still have some crazy stuff to teach me."

Kelly kissed him, leading the dance with his tongue. Yes, he had things to teach him.

After their shower, dressed in joggings and t-shirts, they dined on the Chinese dishes they had ordered, too exhausted to cook. The couple were kissing, the t-shirts had been off for a while when incessant knocking on the door sounded.

"Guess she knows where I am now." Matt sighed.

"Do you think it's her ?" Kelly asked.

"MATT, I KNOW YOU'RE HERE, OPEN THE DOOR !" came Gabby's voice.

"Tell Antonio to come get her." Matt said, before getting up.

Gabby Dawson was tenacious, and she wouldn't leave without a fight. Matt didn't bother to get dressed and went to open the door, and wasn't surprised that his ex walked in uninvited.

"So that's where you dug in to avoid me." she says.

She caught sight of the many Chinese catering boxes on the coffee table, then noticed that neither Matt nor Kelly were wearing t-shirts.

"What do you want ?" Matt asked. "I thought I was clear this morning when I told you that I didn't want you to talk to me anymore. It also meant that I didn't want to see you anymore outside of work."

"Look, I'm sorry for what I did, for wanting a baby without telling you, but we can just skip it and start over." Gabby said. "I know that I behaved badly, and that I took the diagnosis of the doctor badly, but we can start again. I need you."

"No, no I…I don't want to do it again." Matt said. "I don't have any feelings for you anymore."

"But you once loved me, you can fall in love with me again." Gabby insisted, moving closer to him so fast he couldn't avoid her when she tried to kiss him.

He barely had time to turn his head for Gabby's lips to land on his cheek. He untied her hands that she had tied behind his neck and pushed her away.

"No !" he snapped, stepping back after letting go. "Everything is over between us for a long time. You treated me like shit for over three months, and you expect me to come back ? I don't love you anymore, Gabby, deal with it."

He lengthened the distance between them by joining Kelly, who was sitting on the back of the sofa.

"And I give you until the weekend to leave my apartment." Matt said.

"Wh-what ? You told me until the end of the month."

"I changed my mind." Matt said. "And I will give my notice and return the apartment."

When she saw the way the other man touched the back of the neck of the man she loved, Gabby took a step back, as if she had just been hooked right in the face.

"No, no, no, no, no, no, no ! You... it's not possible." she says. "You… you are not… no !"

"Yes !" Matt said. "I'm with Kelly now, and don't start playing the scorned women. You and I haven't touched for months. For my part, I had been single for a long time, I simply put a definitive stop to our relationship on Friday."

"Matt, no !" Tears streamed down Gabby's cheeks. "I know I hurt you but I don't want to lose you. Not for him."

Matt rolled his eyes. He knew her well enough to recognize fake tears. She tried to coax him, but it didn't work and she realized it. Her face closed and she wiped away her tears with a sharp wave of her hand, and glared incendiaryly at Kelly.

"You jumped at the chance, I see. He is single and you hasten to turn him against me."

"You're ridiculous, Dawson." Kelly said, not the least bit touched by the acidity of her tone. "And I didn't do anything to separate you, you did this on your own. I was ready to never reveal my feelings to him, as long as he was happy with you, but that was no longer the case. He was single, I wasn't going to wait another second."

"I'll get it back, you can trust me." she warned him.

"That will never happen, Gabby." Matt replied. "I'm in love with Kelly, just deal with it."

There was a knock on the door, and Kelly yelled for the person to come in. Antonio, once through the door, pointed to Gabby.

"We're going back home. Now !"

"Antonio, stay out of this." Gabby said.

"He broke up you, and for good reason so stop hanging on." his brother told him.

"But I love him !" she cried. "And you are aware that he has already replaced me ? By that motherfucker Severide ?"

"He broke up with you." Antonio repeated. "So he can do whatever he wants with whoever he wants, that's none of my business."

"But… "

"Shut up !" he cut her off.

"I have confirmation that she tried to have a child behind my back to force me to stay with her." Matt told him.

"Oh God !" Antonio sighed. "Casey, you'll get your apartment back tomorrow. We're going to get all your stuff, Gabby, and you're going to come over to my place."

"Antonio…"

"DO NOT DISCUSS !"

He was getting fed up with the fuss his sister was causing, it was clear on his face.

"You're acting like a child, and I'm really not in the mood to deal with your shits." he told her, more calmly. "Matt doesn't love you anymore, and what he's been doing since he broke up with you is none of my business. But that you're behaving like a capricious child who refuses to admit your wrongs is seriously starting to get on my nerves. So we're going to go to your house, you're going to take all your things, and you're going to come and stay with me while you find yourself an apartment. Don't make me involve the parents !"

Antonio exchanged a look of propriety with the two firefighters before following Gabby out of the apartment. He hadn't been surprised by his sister's comments about Casey and Severide. He was a police lieutenant, and when he knocked on the loft door on Saturday morning, he sensed that the atmosphere was different between the two men. And even before that, during the evenings at Molly's. Those stolen sideways glances when no one was looking in their direction. And it was none of his business. Matt was moving on with his life after weeks, months stuck in a toxic relationship, and Antonio couldn't blame him for that.

Back in the apartment !

Kelly pushed the lock as soon as the Dawsons were gone.

"What an evening !" he said. "Do you think she's going to piss us off for a long time ?"

"Maybe, but if she starts acting up at work, she's going to have to deal with Boden." Matt said. "Personally, I prefer not thinking about it."

"Do you want to go to bed ?" Kelly asked.

"Do I want to go to bed ?" Matt repeated, wrapping his arms around him. "Um, to sleep or to do something else ?"

"It's up to you !" smiled the other man.

After cleaning the coffee table and turning off the TV, it was mouth to mouth that the couple went to their room. Rid of the pants, they lay down, one on top of the other and eager to lose themselves in the throes of passion and sex. They said nothing for long minutes, just kissing and looking at each other. No, Matt had no regrets about the turn of the last few days. The only one he could feed would be for letting things drag on with Gabby. He should have ended their relationship as soon as he realized that he was no longer in love with her, but with the salt-and-pepper-haired hunk he had been working with for several years, and who was currently rolling a condom over his turgidity. He regretted it, but he wasn't going to blame himself for it any longer. The past was behind him, and he had to think about his future only. He was certain, down to the tiniest fiber of his being, that he was with the right person. For him, for Kelly Severide, he was ready to face any fire to keep their love alive.

THE END !


Thanks for reading *-*

English is not my first language and I used Google Trad for major help so I hope it's good !