A single step into the apartment lifted the oppressive heat hanging around Jin's neck. He sagged in relief. In a moment, he'd practically sighed his shoes off, leaping across the cool tiled floor. 

Behind him, still out in the humid summer, Jimin hummed a tune as he locked up his car. His arms were crowded with whatever manner he'd decided to dump on Jungkook today. 

Jin had no idea; he was only the passenger. 

He wiggled his toes against the tiles, waiting only a moment for the younger man before heading deeper into the apartment. Already he could hear music from somewhere towards the back bedroom. 

He rounded a corner, ready to face a teasing onslaught from their younger friend, only to realize something was off about the apartment. Was that cotton leaking from the back hall?

Jin stepped into the mouth of the room, pushing aside the strange tsunami with the toe of his sneakers. 

What had Jungkook been doing in the last 24 hours? They'd seen him just yesterday when they'd helped wrestle a new mattress back to his apartment.

Jin inched into the hall, wading into the thick, white heap. It was foamy and stiff as it broke into smaller pieces around his shoes. 

Another step and he could see the bedrooms at the other end. And then he could see Jungkook. 

Beneath a too-cheery light with a speaker blaring fast-paced pop music, Jungkook bent over what Jin assumed was a mattress. Or at least, it had been yesterday. 

Now, it was in the process of being hacked in two by the younger man, foamy material oozing from numerous puncture holes. He raised his choice weapon again, the kitchen scissors glimmering. 

"What're you doing?" 

Jungkook startled, the scissors clattering to the floor a fraction from his bare toes. Wide brown eyes met Jin's over the remnants of the mattress. He cut the music. 

"It wouldn't fit," was his only explanation. 

"So you decided cutting it was the best option?"

He merely shrugged. "I gotta get it in my room somehow. Doesn't seem right sleeping in the hall."

Jin wheezed a laugh. "So you return the thing, not hack it into pieces."

Pink colored the younger man's face as he retrieved the fallen scissors. He flicked a piece of foam off the blade. 

"That's too much of a hassle," he mumbled. 

Jin stared. A hassle? Was he insane? 

Behind them, Jimin finally entered the apartment in a clatter of shoes and tipping boxes. He cursed, but neither of them moved from the mattress or the hall. 

Instead, Jungkook sunk to the floor, legs folded neatly beneath him. He looked up at his older friend, eyebrow quirked in question. 

"Well? Are you gonna help finish the job?" 

In answer, Jin snatched a handful of foam and chucked it at Jungkook. It hit his shoulder with a soft woosh before plopping to the floor. 

Mischief cleared the remaining flush from Jungkook's face. 

Jin barely registered the change before a volley of cotton assaulted him. It slapped into his face and shoulders without relent. Harmless, of course, but still. 

With an overdone screech, he fell in a dramatic heap beside the mattress. 

"Oh, Jimin, save me!"

Jimin didn't hear him, or he didn't care for his dramatics. 

But Jungkook did. He barked a laugh, seemingly forgetting his foamy assault. As he rocked back and forth, a forgotten piece slid from his limp fingers. 

Jin lifted his head; surveyed the laughing maknae and the destroyed room. 

"I'm free," he crowed, then picked himself up with a flourished leap. 

Jungkook choked off a laugh, failing to school his expression. "You didn't answer my question," he said. 

Jin didn't need to. 

He cleared a spot on the floor opposite Jungkook, the mattress a carcass between them. Then he went to fetch a clueless Jimin and an extra pair of scissors. 

"You'll have to buy new scissors after all this," he called down the hall between muttered explanations to his friend. 

Once he'd returned brandishing a weapon, he got to work on their adversary. Jimin, content to simply watch, leaned against the wall, snapping far too many pictures between laughs. A somewhat silly quiet settled over the group.

After a moment, Jin said, "Jungkook?"

"Yes?"

"You're an absolute legend, sometimes."

A piece of mattress foam hit him square in the nose. Then the music picked up again, an answering laugh to Jin's proclamation.