Jimin's POV

"Yah, come here, guys!!!" I called Jungkook and Taehyung who are still lying flat plastered on the floor.

I don't even remember how I get to be on the living room. The last memory I had was having a conversation via group chat with the guys. We were talking about noona who had been so weird.

To be honest,  it was my first time seeing a girl who acts the exact opposite of how she normally does just because she has her period.

I mean, I know that they get moody sometimes but heck,  Jisoo was on a different level.

When I opened my eyes, I was quite flustered when I realized that I was in the living room,  on just my boxers by the way.

When I looked around,  I saw everyone except Suga and Jin hyung in the living room,  dead asleep., Hoseok hyung snoring loudly. Maybe because he was so exhausted as he danced along with Jisoo last night like a complete drunk.

I checked the clock on the wall and realized that it was already past noon.

After changing into something decent, I decided to check where Suga and Jin hyung are.

Suga hyung's room was locked. 

I then checked Jin's room only to be shocked by the scene before me. Jisoo was sleeping peacefully while Jin hyung was hugging her from behind.

It was such a sight, to be honest.

I know that Jin hyung is really sweet but he is actually so different when it comes to her.

I can always catch him giving her a different glance like she was so precious. I'm not saying that she isn't but it clearly looks like he likes her.

"What?" Jungkook said while he forcefully tries to open his eyes.

"I swear Chimchim,  if that's something stupid, I will kill you." Taetae can be a jerk sometimes especially if you disturb him while sleeping.

I opened the door wider and like me, Taehyung's eye went wide.

"Heol."

"See. Told you something's going on between the two."  I told him while Jungkook was simply frowning. 

"Yah, don't you think we need to wake them up? I don't want to be an uncle this early by the way." Taehyung playfully smirked which made Jungkook hit him on the head.

"Ouch!Yah!" he said.

"Do you want to experience noona's episodes again?" Jungkook said.

I suddenly remembered all the things that had happened last night. I shivered at the thought.

"Nope. Definitely not." I said.

"See? Don't worry, I trust Jin hyung. It's actually Jisoo that I'm a little scared with." I chuckled at what he said.

After a good minute,  I felt Jungkook's hands on my arms.  He was now pulling me and Taehyung back to the living room.

"Yah,  I need to take a picture first." I pushed Jungkook's hands and run back to Jin hyung's room to take a picture.

"Oh, yeah. Yes, I won!." I said after I went back to where the boys are. I did a little happy dance as a celebration.

"What for?" Jungkook asked looking at me like I'm a weird human being.

"Don't look at me like that, pabo. Oh,  Hoseok Hyung, and I made a bet." I chuckled as I looked at Hoseok hyung who is still asleep beside Namjoon hyung on the couch.

"What did you two bet about?" I look around and saw Suga hyung walking slowly towards us. He then sat to Jungkook.

"Wow, you look so fresh hyung!" 

Tae was right. Suga hyung just laughed. "I told you to lock your rooms, didn't I? "

"I did," I said, confused.

"Well, I pushed the table behind the door. You see,  I woke up at six and saw Jisoo picking the lock on Namjoon's door like a thief. I almost laugh when she cheered once it opened."

"She did that?  Oh my God. Don't you think we should be asking manager-nim if we're still safe here? She's an alien, I swear, you have to believe me." I threw the pillow straight to Tae's face in which he just pouted.

"I knew she was trouble the first day." Suga hyung shakes his help.

Yes. We can still remember when we first came here and saw Jisoo only wearing a BTS shirt. At first, I got afraid that she was a fan but I'm sure that we won't be sent here if that's the case.

"Oh, I just remembered, is she your fan Jungkook? She was wearing your shirt the first day we came here." I never got to ask him about her. They seemed to be so familiar with each other.

One time, I actually thought that they were ex-lovers but she's a little older so I dismissed the idea.

"I noticed that too. And actually almost all of her clothes were once yours. It's not like you have a similar set of clothes but it looks like, it was really yours, to begin with." V added. 

Now I'm more curious.

"You once said that she was your stalker." Suga hyung's eyebrow furrowed, "I don't think you'll be that close to her if she is though. Tell us, you're not really ex-lovers, right?"

"Fuck, no. Kookie is mine." I told him. Okay, that was a joke.

"Shut up Chimchim. We're clearing things up here." Suga hyung said. "Now spill the beans kid before I ask her myself."

We all look at Jungkook who is still sitting quietly on the floor. He looked so tense.

"Yah, Kookie, is she your ex?"

"Ani..." he said.

"Then what, fling?" Tae asked.

"Sister..." he answered.

"Sister...okay you should have just---wait, what did you say?!!!!" I looked at him, afraid that I just misheard what he said.

I looked at Tae who stood up and hugged me real tight. I hugged him back. "Yah Jimin, did I hear it right? Did she just said Jisoo was his sister?" so I heard right. 

"Taetae, I was confused myself."

Suga hyung threw a pillow to Jungkook which the other just caught easily. "Hey, we're asking a serious question here you brat!" he said.

"I am serious! She is my older sister. Half-sister to be exact." I looked at him while she nervously plays with the pillow that Suga hyung threw earlier.

"How come we never heard about her?"

"It's a long story. Plus, I only saw her again when we came here and we were not really in good terms before that - my fault by the way."

We all turned quiet. The sound of Hoseok hyung's snore is the only thing you can hear.

"Wow," I said. Why did we never think about that?

"Wait, so does that mean, Jin hyung will really be your brother once he and your noona have a baby?" Tae innocently asked in which Jungkook responded by hitting him with a pillow.

I stood up."Yey! Pillow fight!!!!" Then again, all hell break loose.