Halloween

A few things:
1. English is not my first language, but I think this is okay, considering that.
2. I've tried my best but grammar is not easy.
3. This is my first time writing, I haven't done it before, so there's definitely some flaws.
So enjoy this little story I decided to write at 2 in the morning because I couldn't sleep.

You walked into the kitchen, in the best Harry Potter costume you could put together from things you'd found in the bunker. Of course it was pretty great, because you didn't fool around when it came to the Potter universe. You had taken one of Cas's white shirt, your own red and gold tie, a thin black sweater on top, your black round glasses, black skinny jeans, black shoes, your wand and finished it off with your cloak. Sam and Dean didn't notice at first that you weren't wearing your normal clothes, but Sam did say something after the few seconds it took him to realise what you were wearing.
"Since when do we live with Harry Potter?" He asked.
"Since it's Halloween" you answered with a wide smile.
"We don't really do Halloween around here" Dean butted in.
"Yeah" Sam added.
"Well you do now, because I love Halloween" you said cheerfully "and where I go on the 31st so does Halloween."
"So say we do do Halloween this year, how'd we do it? It's not like we can just decorate the bunker to be all Halloween-y" Sam said.
"We don't have to decorate the place, we can just dress up and watch a horror movie" you explained.
"I guess we could do that, but we don't exactly have things to make costu-" Sam got interrupted by Cas coming into the kitchen.
"Hey Cas!" You exclaimed "do you want to dress up and watch a horror movie with us?"
"Er- why would I dress up in order to watch a horror movie?" Cas asked confused.
"Because it's Halloween" you said sounding excited.
"Cas don't question it, just do it" Dean quickly said.
"So you're in?" You asked Dean surprised.
"Yes, why not" he said and shrugged.
"Because we have a case, Dean" Sam said.
"It's a ghost stealing some farmers corn, we only took it because things are quiet lately. So I think the corn stealing ghost can wait another night" he said "Come on Sammy! Lets have some fun"
"Okay fine lets do this" Sam said closing his computer.
"Wait, what do we use for costumes?" he then added.
"I'm sure you'll find something to make it of" you tell him.
When Sam and Dean had gone to their room trying to come up with a costume, Cas turned to you.
"So Y/N what do I dress as?" He asked, sounding worried he might do something wrong.
"What ever you want. You could dress up as something completely random or a character from a movie or tv show, you decide Cas" you tell him.
"Okay! I've got an idea" he says as a smile creeps upon his face.

You walk to your room to find the movie you'll watch with the others. At one point you hear Dean yell yes in the kitchen, you don't think much of it and continue flicking through your movie collection. When you've found the right one you walk into the library. You walk in just in time to see Dean run out of the kitchen, and into the library. You laugh instantly at him in his costume, he looks ridiculous, but it's obvious what he's dressed as. He's wearing black jeans, a black apron (witch you didn't even know you had) around his neck, a black pice of cardboard resembling cat ears on the top of his head and his black batman tshirt. You still can't help but laugh at him.
Cas comes out a few seconds later in his normal clothes, except no trench coat and his suit is buttoned, and his hair is somehow kinda stylish. You and Dean are both confused to what he's dressed as, right until he shows you his gun. The gun appears to have a muffler on (where he got it from you have no idea), and Cas starts talking in his best British accent. You and Dean both let out a sound of realisation, and say Bond in unison.

It takes a couple of more minutes for Sam to finish, so you three go into the kitchen to make some snacks. When two bags of popcorn have been made and various different bags of candy has been pored into bowls, you all three go to Deans room to watch the movie.
"SAM!" Dean yells at his little brother when he's the only one not done yet.
"YEAH! I'LL BE THERE IN A SECOND" he yelled back.
About a minute later Sam finally comes to deans room and you and Dean bursts out laughing, like you've never laughed before, while Cas sits beside you looking very confused to what Sam has dressed up as. Sam's wearing a flowerlike shirt unbuttoned down to his belly button, the skinniest black jeans Sam has probably ever been in, he's somehow greased up his hair enough for it to start curling at the end and with what you're pretty sure is a permanent marker he has drawn to birds flying towards each other on his chest.
"I don't understand what you're dressed up as Sam" Cas said.
You manage to tell Cas though your laugh that he's dressed as Harry Styles, but you almost can't get the words out of your mouth witch makes Sam and Cas start laughing along with you and Dean.
"Hey Cas!" Sam says when the laughter has died down.
"Yes Sam" he answers.
"What are you dressed as?"
Cas quickly gets to his feet and stares at Sam.
"Angel of the Lord, Castiel Angel of the Lord" Cas said in his best British accent.
Cas then sits down again while looking proud of himself.
You see the confusion on Sam's face so you lean over and tell him that the real line is Bond, James Bond, when the same realisation noise you and Dean made comes from Sam as well.
"Hey! What movie are we watching?" Sam quickly asks before it starts.
"Friday the 13th, the 2009 remake" you say with a wide smile.