My Brother's Best Friend

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This will be a fluffy story. 🐯🐹

Kim Seokjin is walking towards the dorm where his boyfriend is staying in. He called him over so they could do some studying, but he knows what he really wants.

Every time they meet for a study session it turns into a wild, passionate night of sex. But he's not complaining, he enjoys sex with his boyfriend.

When he arrives he knocks on his door and a tall, dark haired male opens his door. He has never seen him before so he checks the room number to make sure he has the right room.

When he sees it is the right one, he looks at the guy and asks, "Where is Jungkook?"

The guy gives him a sly smile and starts to walk past him.

He then replies, "He's inside somewhere. Please let him know I left." He then walks out leaving Jin totally confused.

He then walks inside and can hear the bathroom door opening and sees Jungkook walk out wearing only a towel around his waist.

When he sees Jin he smiles and walks over to hug him.

"Baby, I didn't know you were here."

Jin stands still and doesn't return the hug, glaring at him.

"Who was that that just left?"

Jungkook looks around and tries to act innocent.

"Oh, you mean Jaehyun? He is my lab partner. Remember I told you about him?"

He then walks over to his dresser drawers and pulls out his underwear and a pair of track pants. He then turns to face Jin and uses his towel to dry his hair.

Jin doesn't know why, but he is getting weird vibes from him and it's making him nervous.

"What's wrong babe? Why are you so quiet?"

Jin walks closer to him and stands in front of him.

"I'm only going to say this once, so listen carefully. If I find out you are cheating on me, we are through."

Jungkook throws his towel on the chair and pulled him closer to him.

"What? Where is all this coming from? You know I wouldn't cheat on you babe. I love you."

"Uh huh.. just remember what I said."

Jungkook starts to nibble on his neck, and caressing his back. He grabs Jin's hand and brings it forward to his chest.

Jin instinctively starts to rub his hands up and down on his abs, temporarily forgetting about the guy from earlier.

Jungkook walks them backwards until they land on his bed. And they spend the next hour having sex.

Afterwards they start to work on some school work until Jin starts to get upset by Jungkook's phone going off. It continues to ping every 5 minutes and every time Jungkook sees the message he answers quickly and then places it face down on the table.

Jin stares at him and knows that he's hiding something. He is even pretending not to notice Jin getting upset.

Jin has finally had enough and tells him that he's going home. Jungkook doesn't even try to get him to stay and just kisses him goodnight.

As Jin walks home he thinks about what Jungkook's been up to. And he imagines all sorts of horrible things. But the most likely thing is that he's cheating.

By the time he gets home he is really upset and worries he's going to lose his boyfriend.

He walks into the kitchen and sees the dinner his mother made still cooking on the stove. He goes to the fridge to search for something to drink.

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