Sam figures he's probably going to go blind from staring at his computer screen for too long. And with his terrible luck (why Bloody Mary, why) that's probably how he'll go out.

Yep, in some morbid part of his brain, he thinks that his blindness will come on while he's hunting something stupid, like the ghost of a dog or a ladybug or something, and he'll trip over something equally embarrassing like his own boots or a pack of Cheetos someone left behind and hit his head, and Death will be so embarrassed for him he'll just let him die for once because no way is he explaining to Dean when he comes back that the reason the contents of his head were spilled out over the floor because he left the brightness of the computer screen up too high.

Charlie has tried to convince him that this isn't possible; no way will Death ever get embarrassed unless Sam's killed by like a ballerina zombie while he's in the shower. Then, Charlie says, then maybe Death will feel the pain for Sam and zap away so he won't have to look at his face when he dies butt naked.

Neither of them have told Dean about these ideas, and Sam still hasn't told Charlie he occasionally wonders if Death remembers that one Tuesday that Dean died in Broward County when a girl scout kicked his kneecaps and made him have an aneurysm when he hit his head on the little red wagon she was pulling. Sam wonders if the seven Thin Mints Dean had in his mouth when he died were still there later.

But anyways, when Kevin suggests the two of them go explore the bunker for a while, he practically breaks the laptop screen slamming it shut and jumping up. Even though Kevin gives him a disdainful look for almost harming a piece of innocent (yeah, right) equipment, they grab their cell phones and a half full pack of cookies and go off to explore their newish home.

As they walk, Sam finds out that Kevin thinks he's going to die when he hears the TARDIS noise while on a hunt and turns around to see, thus getting his head ripped off. Sam pats his shoulder in sympathy and hands him a cookie.

The two wander aimlessly for a while, peering into rooms that seem mostly to be living quarters or some sort of research center. Kevin spots a room. It's not much different than the others, but something about the sign piques his interest. With help from Sam (who is still unfairly strong even when one of his hands is occupied by a pack of Fudge Ripples), they push the door open.

Kevin imagines some sort of heavenly light falls on his face as his mouth drops open. Sam hears, rather than feels, himself say "Oh, my-"

Kevin doesn't even look up from where Sam has reflexively put his hand on his shoulder, his eyes still transfixed on the room and possibly glowing.

"We just found the holy grail, dude."

Sam is inclined to agree.

Dean, hours later, walks into a suspiciously empty bunker. When he left early that morning, Sam had been muttering something about ballerinas and typing on his laptop, and Kevin had been dutifully translating the tablet.

He dials Sam's number, and is answered after a moment by Sam, who sounds slightly out of breath.

"Oh, hey, Dean, hey, you're home!"

"Yeah, Sammy, it's been almost six hours."

"Wow, really, who'd have known? Well, I'll find Kevin somewhere around here, I'm sure he's in a library or something. You know him, always working."

"Sammy, you okay?"

"Yep, I'll just find Kevin now, bye."

And he hung up with a click. He hadn't used any code words or panic words, so he was probably fine. Acting weird, though.

When Kevin and Sam finally reappear around a corner Dean thought held nothing but science equipment, they're both suspiciously red and out of breath. Dean raises an eyebrow and serves them the awesome pasta that he had made for the night without another word.

For a few days, Dean sees a suspicious lack of both his brother and Kevin. Kevin bounds to the kitchen after Dean returns from a milk run, sweaty and out of breath.

"You all right, dude?"

Dean asks warily. He really doesn't know what he'd do if the kid was sick. Shove him off on Sammy, most likely.

"Oh, yeah, totally. Just...in the gym."

Dean is skeptical, but hands him the juice box (who the heck got them all addicted to those things, anyways? He blames Cas, who loves them more than life itself.) he was waiting for. A further suspicious glance shows his calves are suspiciously toned.

Kevin scampers off before the older hunter can ask any questions. Such a weirdo.

A couple days later, Dean is starting to get pissed.

"Are you bouncing, Sammy?"

He asks.

Sam looks down at his gigantor legs, as if he's surprised that they've been moving in an up and down motion where he's stood for the last fifteen minutes.

"Guess so. Gotta go!"

He scooches out of the room before Dean can ask him anything, bringing the last two juice boxes with him. His legs were strangely toned, too.

"It's like that episode of Community."

Kevin's whispering to Sam as Dean huffs in, tired from a hard afternoon of fixing up his Baby.

He cuts off as soon as Dean enters, and that's when Dean absolutely has to know.

For a while, he legitimately considers finding a Men of Letters invisibility spell, but he can't tell Sam about this and he doesn't want his life turning into some bad Buffy the Vampire Slayer episode. More than it already is, anyways.

He almost catches up to Sam one day when lurking (following because he was concerned) behind him. But Sam must have known he had a tail because when Dean burst into the room he had followed him into, Sam looked up from an overly large book with a expression of complete fake surprise.

But Dean sees the little smirk he's hiding behind the book that is not sized for humans, and his stupid perfectly toned thigh does a little dance of what Dean imagines is victory before Dean makes up an excuse of looking for the pool table and slinking away.

He gets his lucky break when, in the early hours of the morning, he hears Sam's almost silent feet slide past his door. When Dean cautiously sticks his head out his door, he sees that his brother is holding that stupid extra large foam ball he had suckered Dean into buying at the store last week while Kevin snuck cookie dough and two pairs of fuzzy socks into the cart. But Dean, you never know when you might need one! Had been his argument, and although a sucky one, Sam had turned the puppy eyes up to 11 while Kevin attempted the same next to him.

Dean had cursed and Sam had cheered, holding the huge purple foam monstrosity over his head like he had just scored a touchdown. Then Cas had entered with with questions about something he really shouldn't have questions about and Dean had pretty much forgotten about it.

But now he was carrying that foam ball past his room at three in the morning in the same freaking socks he had bought him and Dean was determined to find out why, even if it literally killed him again.

Sam knocked three times on the door to an old room before it creaked open momentarily, slamming shut as soon as Sam got inside. He almost fell asleep while waiting, but hours later, the two exited the room, red cheeked and laughing.

Dean clenched his fists. They were having fun without him, when they had woken him up and forced him to follow them down several corridors instead of going back to bed? Rude.

As the two exited, talking about cookies or the new episode of Game of Thrones or something, Dean held his breath. As soon as they left earshot, he sidled up to the door.

There was writing next to it, in that sort of pretentious, old fashioned font where the Ts were unnecessarily fancy and you couldn't tell if the I was capital or lowercase.

"Acrobatics exercise and alternative calisthenics."

It read, almost like a statement that he was missing out on something amazing.

He pushed the door open, which came easily as it looked like those two traitors had been doing work in it.

He opened the door and stood transfixed.

"What the-"

He couldn't bring himself to finish the rest of his statement as he took in the room's contents.

It was... A room that was one giant trampoline. The ceilings, the walls, every single part of that room was able to be bounced on. It was a trampoline room.

Or, Dean thought as he took his first experimental bounce, hitting the ceiling and then the wall, Paradise.

He was going to completely murder Sam and Kevin after this for not telling him. He let out a groan of happiness as he crashed his face into one of the walls. But first, he would call Charlie. After they bounced, they could murder.