Chicago Universe ✔️

Matt/Kelly- Polyamorous Headcannon

This was a request. It's just a short little head cannon.

YN was the newest detective at PD, Jay's newest partner since he and Updated started dating. YN moved from the UK to New York originally, but once Voight got word that New York had one of the best detectives he knew he needed her on his team. So he put a transfer offer in and she agreed.
After a tuff case Jay invited YN to join him and the others to go to the bar Mollys or pub as YN would call it. That's where she met Kelly Severide trying to chat up a woman while nursing a beer. When the woman walks away from Kelly that's when YN and Kelly start talking.

It started off as just friendly, YN met everyone at the firehouse and quickly became friends with everybody,but the one probably that YN had was she had gained feelings for not only Kelly but Matt Casey as well. Little did she know at the time both of them also gained feelings for her.

It took a while for them to all reveal their feelings, but when they did YN never felt more confused. She didn't know what to do at first thinking she had to choose, but Matt and Kelly reassured her that she didn't need to choose between either of them, they just wanted to be with her.

It was new for all of them, being in a 3 way relationship so while they were getting used to this they kept their romance a secret. That is until YN let it slip to Jay that she was stressed about what people would think. Jay at first was shocked, but supported his partner and friend.

6 months into their relationship they decided to tell their friends which they all were worried about, but they really didn't need to be. Their friends were supportive of them, although it may get some used to for everyone but YN, Matt and Kelly weren't treated any differently.

They're often seen at Mollys having a couple beers, YN sat in the middle of Matt and Kelly. Kelly's arm is usually round her shoulder while Matts hand is often on her thigh. This is one of the ways that Matt and Kelly let everyone know that she's taken.

Matt and Kelly are both very protective of YN, but she can be just as protective. Like when a woman was hitting on Kelly at Mollys, YN walked over and sat on Kelly's lap giving the woman a overly sweet smile. Or when YN had been called on to a job helping the fire department during an active shooting in a burning building. YN would keep Matt behind her at all times with her gun raised.

After they decided it was the right time to move I together they fell into a pattern and certain roles. Kelly is often the one the cook for the three of them while Matt often washes up after dinner and YN will clean down the surfaces. When YN is off she will usually strip the bed and do all of the washing, while when Kelly and Matt are off they will clean the house. This doesn't mean that every now and then they will creep on to each other's roles or just help one another.

Being in a relationship with someone who's British Kelly and Matt had to get used to her sayings. Like the time YN was writing something down in pencil and she makes a mistake. She asks Kelly "can you pass me a rubber". Of course Kelly was super confused to why YN wanted a condom, but went and found her one anyway. When he gave her the condom YN frowns looking at him "why have you given me a condom? We're not having sex right now". "But you asked for a rubber?" he replied also frowning. "Yeah to rub out what I wrote". "Ohhh an eraser" he would come to the realisation.

Or when YN and Matt has gone shopping and YN asked Matt to pick up an aubergine "a what now?" Matt would ask confused. "Oh god is this another thing with a different name". "Must be. What's it look like?". "It's the errm, the dick emoji" YN would whisper. "Ahhh eggplant".

A few years into their relationship they decided to have a baby. Well the plan was shed have a baby with Kelly first then in a years time she would have a baby with Matt. That way they would both have a biological baby, not that they were overly bothered, but since they could they thought why not.

When YN fell pregnant she had certain cravings that neither Matt or Kelly could find since they were specifically British snacks. Crumpets and quavers. Kelly learnt how to make crumpets from scratch while Matt would phone YNs family to ask them to send quavers to them.

YN, Matt and Kelly work well together. It may have not been what any of them thought their lives would look like, but you can't help who you fall for.

Crumpets are a type of bread with holes that a toasted and often served with butter. I actually like them with no butter and soft cheese.
Quavers are a type of crisp/chip that are cheese flavoured. They are my absolute favourite crisp.