Matthew Casey and Kelly Severide have been friends for a very long time; they were even best friends once upon a time but that changed with the death of their best friend Andrew Darden. They've gotten to the point where they're living together again and rebuilding that friendship that they once had and something else.

Kelly Severide: Do you want to go out for dinner or do you want to stay in and I'll cook?

Matthew Casey: Let me see. Going out would entail getting dressed and leaving but also you paying while staying in requires not doing anything and eating your wonderful cooking... mmm, I wonder which one to choose.

KS: Well you better choose before I leave you here alone. (He smiled)

MC: It's not an easy decision but I'll choose staying in.

KS: For the free food?

MC: The food was going to be free anyways because you invited me so you were definitely going to pay.

KS: ... Okay but get up you're helping me with the food.

MC: Every fibre in my body is exhausted our last call wasn't a joke.

KS: I know, I was there too but I'm still standing.

MC: Yeah because squad didn't have to run up a million stairs carrying people down like we had to.

KS: Only because we had to get the people out of the burning conference room.

MC: Semantics.

KS: Lieutenant Casey, if you're not in the kitchen in the next ten minutes then I'll only be making enough for one.

MC: You wouldn't do that to.

KS: Wanna bet?

Matt sat starring at Kelly's retreating figure before shaking his head and going to the kitchen. Kelly did most of the cooking while Matt did most of the chopping.

KS: See, this is just like work. Squad does all the heavy lifting while Truck does the easy work.

MC: Half your team would be dead if it wasn't for Trunk.

KS: Mmm.

MC: Admit it or I'm stabbing you with this knife and ordering takeways before calling for help.

KS: You're right. We wouldn't be able to do our work without you guys there. We make a pretty good team.

MC: Are you talking about the two of us or Squad and Truck?

KS: I don't know... both.

MC: Then we seem to be in accordance with one another.

KS: What's up with all these big words that you've been throwing around lately?

MC: I'm the Alderman, I can't go around using simple worlds. My constituents need to see that I know what I'm doing.

KS: Well then I should tell him what a mess you are here at home.

MS: Hey! I'm not messy.

KS: I never said you Alderman Casey, listen. You're a mess look at you.

MS: I didn't feel like dressing up when we got back today and you don't look much better so you can't judge me.

KS: I can because I look good in everything I wear.

MS: Your string of weird ex-girlfriends tell you that?

KS: Go back to chopping Casey.

MS: Yes sir.

The two men finished making their dinner with smiles on their faces and probably sat closer than necessary on the couch in front of the TV.

...

A few weeks later Casey gets a message while he's at the firehouse asking him or rather informing him that he is expected to attend a state dinner that Friday and that he is allowed to bring along someone. He tries fruitlessly to get out of it but is told that it's mandatory for the Alderman to attend so he agrees but not without making his feelings known.

...

MC: Kelly. (He knocked on the door before entering and closing the door behind him)

KS: What do you want and no, I'm not joining Truck.

MC: Firstly, you wouldn't meet our standards...

KS: Sure, next?

MC: Why do you assume I want something?

KS: Because every time you call me Kelly you usually want something.

MC: That's not true... most of the time. (He smiled)

KS: My point exactly, so once again what do you want?

MC: What are you doing Friday after our shift?

KS: ... I don't know but I'm sure you're going to tell me.

MC: There's this dinner that I'm invited to and I'm allowed to bring someone along, so I was wondering if you would like to come along.

KS: Where is this dinner and do I have to dress up?

MC: I don't know the where yet but you might have to wear a suit. (He said sheepishly)

KS: Lieutenant Casey, what is this dinner for?

MC: It's a state dinner and I've just been told that it's mandatory for the Alderman to attend.

KS: You're lucky I own a suit.

MC: Does that mean you'll go.

KS: As long as there's free booze and everyone can be dazzled by me in a suit.

MC: You don't look half as good as you think you do.

KS: I'll prove you wrong on Friday.

MC: Hey, you can't upstage me, I'm the Alderman.

KS: And you'll have the best looking plus one so stop complaining.

MC: You... (He was cut off but the alarms blaring)

SQUAD 3, TRUCK 51, AMBULANCE 61. HOUSE FIRE, CORNER OF ASHLAND AVENUE 2576.

MC: We're not done.

KS: We never are with you. (He smiled pushing Casey out of his office and running to their trucks.

When they got to the house or rather mansion the fire was already out of control and there were still people inside. Firehouse 51 worked together and got out all the people with minimal damage. They got the fire extinguished within an hour and left after cleaning up what they could and making sure everything was okay.

...

Friday had been a quiet shift with no major fires or anything, the only call they had that day was about a car accident that required their help. They were all off on time and Casey and Severide turned down the invite for a drink at Molly's with everyone else because they had a prior engagement.

They got back to the apartment and got dressed with enough time to spare before the dinner started.

KS: Okay, I stand corrected?

MC: What?

KS: You sort of look really good in your tux Alderman Casey.

MC: Was that a compliment?

KS: Yes now get rid of that smug look on your face.

MC: I'm not smug, I'm giddy.

KS: I'm throwing away whatever dictionary that you're using.

MC: Thank you, you look very good too.

KS: Thanks, let's go wow those people.

MC: It's a state dinner so please behave Lieutenant Severide.

KS: I always do.

MC: Should I call Chief Boden?

KS: To see if he'll be your last minute plus one?

MC: I'm driving, let's go.

KS: Absolutely not, we're getting there in style. We're taking my car.

MC: But I wanted to drive.

KS: You can drive on the way back.

MC: But you never let anyone drive your car.

KS: You're not just anyone, Matt. Let's go.

MC: After you.

...

The two men arrive just before the dinner starts and there are a lot of eyes on them as they're lead to their seats but neither one of them seem to notice because they're too engrossed in one another. Once Matt stood up to get them more drinks a woman tried talking to Severide but failed miserably because he was only focused on his partner who was being approached by another woman at the same time.

...

...

It has been a week since the state dinner and Severide's head was in a mess so he finally broached the subject that the both of them have sort of been ignoring.

KS: I'm usually the one who avoids important conversations hoping that it'll go away but you're not. You're more of a straight shooter. (He started)

MC: Yeah, I prefer talking things through.

KS: Now when are we going to talk about whatever it is that's going on between us.

MC: What are you talking about?

KS: Come on Matt, you know what I'm talking about.

MC: What do you want me to say Kelly. Do you want to talk about the fact that you hate it when people call you by your first name even though you never say anything, I see it on your face but you let me do it, or about the fact that we prefer spending Friday nights in watching movies and cooking together instead of being with our friends or do you want to talk about the fact that I was asked on a date last week and I said no and she asked if I was in a relationship and I said sort of.

KS: Matt...

MC: I'm scared that if we talk about it then everything will change between us.

KS: Well maybe it should. I want it to change.

MC: Are you saying that you would want us to be more than friends?

KS: I'm saying that I would love to be more that friends with you Matthew Casey.

MC: Are you sure?

KS: Absolutely. (He smiled looking him directly in the eyes)

MC: Then come here and give me a kiss.

KS: That's the straight forward Lieutenant I know... and love.

MC: Come here. (He said softly, pulling Kelly closer)

Kelly put his hands on Matt's cheeks before leaning down into a slow lingering kiss.

MC: I might love you too. (He smiled after finally pulling away from Kelly)

...