Stepbrothers?! ( BTS FF )

For me?

Me and Joonie oppa got out of the car and went into the ice-cream only to know that the shop is closed so we couldn't eat ice-cream. He suggested that we should go to the cake shop from where we'll get oppa's cake and also a treat. Sung-Hoo oppa started driving us to the cake shop.

After a few minutes

We were entering the shop when someone called oppa. We followed the direction of the voice, and an unknown guy was standing there near the night light pole. He started approaching us.

Unknown guy - Hey mah bro, how u doing?
Namjoon - hey Kai!

So Kai is it? Nice name but I don't know this guy looks two faced to me for some reason. Is he hiding something from Joonie oppa. His gaze then landed upon me.

Kai - I didn't know u had a girlfriend bro!
Namjoon - Nice joke. She's not my girlfriend, she's my sister stupid!
Kai - Ahh nice to meet u.

He said taking my hand and kissing it. I laughed awkwardly.

Namjoon - stop it bro she's uncomfortable. We'll talk later we have to go somewhere.
Kai - oh then I'm sorry m'lady. I'll see u later too.

They both did their handshakes and me and Joonie oppa entered the shop.

Namjoon - Y/N sorry about Kai he's a flirt.
Me - nah it's okay but who is he?
Namjoon - oh he's my Childhood best friend.
Me - ohh
Namjoon - is something wrong?
Me - no no nothing oppa. * Smiles *
Namjoon - Y/N I know when you're hiding something.
Me - no seriously it's nothing.

He narrowed both his eyes to me.

Me - stop looking at me like that! It's creepy.
Namjoon - fine but if u feel like something's wrong don't hesitate to come to me or any of us
Me - okay oppa.

We then ordered our own cakes and started eating, we were talking and laughing so much with each other, to be honest ever since I've been there sister I've never spent much time alone with them. So it was really fun getting to know Joonie oppa. After we were finished eating we took Yoongles cake and went back home.

After a few minutes~
We entered the house to see it beautifully decorated there were black and white balloons cuz it's his favourite colour. Yoongles favourite snacks were also there on the table. There were also some presents there, just at that moment I forgot about the other gift I had made him.

Me - oppa I'm going to my room to get my other gift.
Namjoon - okay princess. But be quick they'll be coming home soon.
Me - okay oppa.

I rushed to my room to get my gift, I took the gift and ran downstairs and placed it on the table. Suddenly we both heard the door opening. Our eyes widened cuz we still weren't prepared, but we relaxed a bit when we saw Jin, ChimChim oppa, TaeTae oppa, Sunshine and Kookie oppa coming inside.

Namjoon - where's Yoongi hyung?
Jin - he's coming.
Hobi - to our places!

We hid and turned off all the lights and sat there in the dark. Then we again heard the door opening. The lights were turned on and....

YOONGI POV~
We got back from our missions and were going to get out of the car. Everyone got off and now it was my turn but suddenly.

Jin - Hey Yoongi can u get the bag which had our clothes?

Always me isn't it? Even being the birthday boy I've to do work.

Me - sure hyung.

I got the bag and gave it to him.

Jin - we're changing our clothes there okay?
Me - hmm I'll change here.
Jin - come fast.
Me - okay hyung

After a few minutes I was done and started walking towards our house. I peeked through the window and saw the lights off. I took out my gun just for safety. I entered the house and turned on the lights and....