Requested by RinSeon

Situation - He hasn't ever seen your brother and when he sees you hanging out with him and thinks you're cheating so he gets jealous and pretends to be with another girl.

[Maknae Line]

Jimin

Y'all had started dating just recently and he didn't know of your brother who stayed abroad. So naturally the misunderstandings were on their way.
"(Y/N) where are you?" he called you when he couldn't find at home.
"Oh I'm with–" the line was bad and so the phone for cut all of a sudden. The last sound Jimin could hear was a male's voice calling your name.

He got really mad at it. All colourful thoughts coming across his mind. When you came back, you heard loud laughter. "Jimin?" you called out and found him hanging out with Seulgi and almost clinging to her. "Oh hi (Y/N)-shi!" Seulgi greeted you.
"Hi?" you were so confused.
"Oh Jimin, gotta leave time for practice, bye!" she left.
"What was that?" you ask him.
"What?" he said casually.
"Why were you leaning over her and why was she here in the first place??" you ask.
"She was free. I was enjoying with her... Like you enjoyed with your new boyfriend!" he directly accused you.
You gave him a disgusted look as you questioned him. When he told you what it was about you were left dumbfounded. "Jimin that's my freaking brother!" you say.
His face was literally :0
You were walking away when he quickly grabbed your arm. "I'm so sorry (Y/N)-ah! Please forgive me!" he said all guilty.
"It's okay. Never do it again..." you say and hug him.

Taehyung

This boy was so busy with his new schedule that he had completely forgotten that your distant cousin brother was coming over. When he came back from the studio he found you playing a tickle game with another man. "What the hell (Y/N)!? How dare you cheat on me!??" his voice was frustrated and angry.
"Tae I–" he didn't even let you speak as he went away. You quickly followed him and found him walking into a bar. You too walked in. He was sitting while a girl was literally trying to grind herself on him. You furiously slap her away. "KIM TAEHYUNG MIND EXPLAINING WHAT YOU'RE DOING?" you literally shout.

"At least not cheating like you." he murmered and looked away.
"HE IS MY BROTHER!" you roar angrily. He was awestruck. "I'm so sorry!" he hugged you apologizingly.
You hugged him back indicating he is forgiven then you said, "Better explain yourself to by brother."

Jungkook

This boi is a complete savage. So, when your brother called you up from an unknown number late at night it struck him. You were in the washroom as he received the call. "Hello?"

"Is it (Y/N)?" came a male's voice.
"No but who are you?" he asked sternly.
Your brother didn't know about your recent relationship with Jungkook so he got cautious and worried about you and replied, "Her boyfriend. Who are you?"

He angrily cut the line. When you came out of the washroom you saw your boyfriend fuming. "Jungkook what happened?" you asked.
"Your boyfriend called. How many boyfriends do you have huh?" he questioned.
"What the hell?" you ask.
"How will you feel if I say I was cheating on you with Lisa?" he hissed.
"Jungkook–" he didn't even listen and walked away to the living room. You quickly picked your phone and called back the unknown number. Your brother said it was his new phone and after you told him what mess happened he apologized many times.

"Jeon freaking Jungkook!" you ran to him.
He gave you a 'look'. "That was my brother idiot!" you say. Your brother was on face time now and he apologized to Kookie. After keeping the phone you turned away when he held your hand, "I'm sorry (Y/N) I got carried away and said the Lisa thing... I swear I love nobody else other than you!" he said.

You give him a potty look and peck his lip. "It's okay. Let's go sleep?"
He gave you his famous bunny smile and carried you bridal style to the bedroom.

A/N : Ahhhh so yeah, I completed your request after ages! I'm so sorry for being so irresponsible and I still have so many pending requests but I just am in a huge hiatus even now. Please don't hate me uwu

PS : I'll try to complete all pending requests asap. I'm sorry 😭😭😭😭😭