Sorry if Jungkook is ooc! >.< I am really unfamiliar with BTS members but he was used for plot purposes.

"Hyung!" and next thing he knew he was put into a head-lock.

"Oh hi Jungkoo- AH GAWD!" Sunyoul silently screamed as he recieved a playful noogie.

"Don't 'oh hi' me! It's been forever since I've seen you hyung!" Jungkook laughed as Sunyoul pouted, trying to slap his arm away. Eventually he did let go before he ended up recieving an elbow to his stomach.

"Yes it has, but you didn't have to give me a noogie just because you're taller than your hyung!" Sunyoul scolded, making the other look to his feet like a toddler who tried to hide his stolen cookie. He smiles before patting the other on the arm, "But we really should meet up some other time."

Jungkook immediately brightens at the idea before noticing someone behind Sunyoul, "Are you perhaps looking for something?"

Sunyoul turns around and sees a confused looking Wooshin in front of the counter. The red-haired boy reaches over and tugs on Sunyoul's sleeve, pointing with his other hand to the spiral staircase.

"Do you need help in finding a book?" Sunyoul asks and the other nods, tugging on his sleeve to hurry up. He couldn't help but giggle at how Wooshin was tugging on his sleeve, "Okay okay. I'll be back later, Jungkook."

"Okay hyung." Jungkook smiles back as Sunyoul walks around the counter and follows the red-haired boy.

"I can't believe you're actually doing your homework for once," Sunyoul said once they reached the top floor but saw how Wooshin simply shook his head 'no'. He was confused, "Then are you trying to drag me away from work again?"

Wooshin simply walks behind Sunyoul before wrapping his arms around the other's hips and laying his chin onto his shoulder. This made Sunyoul feel embarrassed, almost forgetting to whisper, "W-Wooshin?! I-I would really like to actually volunteer at the l-library!"

"Psst! Hyung!"

He blinks at the familiar voice before looking down stairs to see Jungkook with a cart full of new books, "New books for upstairs! Mind getting them!"

"H-Hold on!" First, Sunyoul tried to pull Wooshin's arms away, which obviously didn't work. Then he tried moving, which he struggled greatly with and felt like he was waddling instead. He sighed, "Um- do you mind getting off so that my job is easier?" to which the other simply shakes his head, making Sunyoul groan on the inside.

So he ended up struggling to walk down the stairs, making Jungkook look at him weirdly, "So is this guy like your boyfriend or...?"

Sunyoul nearly shrieked in embarrassment at the question, never getting quite use to the question with Wooshin's and Wei's sudden appearances, "N-N-N-No!" and he swore he felt Wooshin nod 'yes'.

Jungkook simply shrugs before pushing the cart over to him, "Just don't trip and fall as you waddle, hyung." He pats Sunyoul on the head before walking off to a bookshelf nearby.

He pouts at how the younger always treats him like he's the younger one just because he's shorter before he feels Wooshin move away from him, "Do you need to go now?"

The red-haired boy nods before pointing over to Jungkook.

"Him? He's my younger cousin." He took notice to how Wooshin jolted in what seemed like realization and blushing a light pink, which was a sight that Sunyoul honestly thought that he would never see, then the red-haired boy leaves quickly.

"Weird..." Sunyoul murmurs and subconsciously counts for 5 seconds before he sees Wei walk over to the counter and almost immediately meets his gaze. The taller waves with a grin as he puts his bag behind the counter.

"Hyung, do you still need help?" Jungkook walks over, "I mean, considering that the cart is completely full of thick books I'm guessing you need help with bringing them upstairs."

"Ah- thank you, Jungkook," Sunyoul murmurs as he pushes the cart as Jungkook pulls it up.

"Um- hey- uh dude- I can take it from here." he looks behind and sees Wei, looking a bit mad and a bit awkward at the same time... if that's even possible.

"Oh it's fine, I got it," Jungkook blinks obliviously as Wei walks over to his side.

"No no, I'm a volunteer here, so I should take over," Wei forces a laugh and Sunyoul wondered what the heck was going on exactly.

"But we're almost up so I can deal with i- oohhh," Jungkook finally got the idea before moving aside, "Just be careful on your way up there," he waves before going back downstairs.

Sunyoul stares at Jungkook before returning his gaze to Wei as they pushed the cart back up, "So what was that about?"

Wei simply huffs in annoyance, staring down at the cart that they finally got onto the second floor, "Nothing... That guy was really chummy with you..."

"Well yeah, he is the son of the owner of this library, it would be odd if he wasn't with the volunteers," Sunyoul said [completely oblivious to Wei's tone of annoyance].

"Uh-huh..." Wei sighs quietly, trying to hide his disappointment but somehow Sunyoul was able to catch on to that. He thought for a moment, pondering a bit more as to Wei's reasons for acting this way before realizing the correlation between his attitude with Jungkook and whenever Wooshin was mentioned.

"Are you... jealous?"

Again, it was a rare sight to see Wei blush before sputtering, "W-W-What?! Why would I be jealous?!"

"I don't know... you always seem pouty whenever I talk about Jungkook or Wooshin... I mean, we're friends, aren't we?" [and on the inside Wei couldn't help but be glad that he was oblivious and annoyed that he was oblivious].

"If we're going with what the kids say we're 'appa and umma' but yeah, I guess," Wei couldn't help but roll his eyes.

"Now that I think about it, why am I the umma?" Sunyoul pouted.

"Because you're petite and you care a lot for those kids," Wei pokes his forehead before placing the books on the top shelf with ease.

"I'm more petite when standing next to you. At least I'm not as much when I'm next to Jungkook..." he huffs indignantly before placing the books on the lower shelves.

"There you go again with the Jungkook guy," Wei mutters under his breath.

"He wouldn't care anyways. Jungkook is just my younger cousin." Sunyoul hears an odd mixture of a sound of flesh meeting wood and said wood meeting a larger piece of wood. He looks up to see Wei's forehead on a book with a covering made of wood which was on the shelf, "Er- Wei...?"

"Nothing nothing!" the taller immediately stands up straight before turning away from Sunyoul and to the cart, pausing a moment to say, "You could've said that he was just your cousin instead of the whole library owner thing..."

Sunyoul blinks in a clueless way, "I thought it was obvious that we're cousins..."