It really depends where they are. At Bobby’s, they’ll explore together. Sam even tried to venture into the wall a time or two on his own, though Dean hated having him out of sight. In a motel, they might go out for the day. Sam stays out of sight in Dean’s pocket when they’re in stores, and Dean stays away from other kids. Dean never leaves Sam alone in the motel. Even as a kid, he’s terrified that something would happen to Sam on his own.

John got the hell out of there. He didn’t actually know that Sam was cursed and with them until probably about a half hour into the drive. He thought that the witch had taken his youngest and was gunning for his eldest. His first thought was getting Dean the hell out of that motel and out of her reach.

Dean managed to pull himself together enough to reveal what he had cupped between his hands. Poor Sam was downsized to two and a half inches. They ended up on the side of the road when John was too shocked to keep driving.

With Sam unconscious and no way for them to wake him, they drove to Bobby’s. Dean refused to leave Sam’s side. While John and Bobby were desperately searching for a cure or a curse reversal, he was there with his brother in his hands, watching over him.

When Sam woke up a week later, he and Dean were in their own room at Bobby’s, but his bed was now too big. So Dean kept him on his chest to sleep, where he could make sure Sam was safe the entire time.

Dean groaned as he read over the text. “This is boring,” he grumbled. “We should sneak out and get ice cream.”

Sam scoffed, taking a few steps on Dean’s back. He’d started out perched on Dean’s head so he could read over the assignment, but Dean spent so much of his time grumbling over the work, he was still on the same page five minutes after Sam had finished.

After being this size for a few weeks, he was beginning to find it far more intriguing than frightening. So long as their dad wasn’t yelling at them, of course. Even now, he could feel the muscles shift under his feet as Dean finally went to turn the page. He was massively outsized, but perfectly safe where he was.

“Y’know that I can’t give you all the answers,” Sam pointed out, walking back up to a shoulder so he could peer off. “You need to do some of it for yourself.”

No one had spotted Sam yet, not even during a test. He was small enough to use the folds in the shirt to hide in, and his voice was soft enough that the other students couldn’t hear him. Dean’s grades had taken an upswing, even with the course material a few years ahead of where Sam was. It was a welcome challenge that he could use to keep his mind off things.

Dean reached the end of the reading and grabbed a notebook. “Whatever. But you’re still helping me with the homework, pint-size. Can’t have you slacking off either.”

Sam hid a smirk as he swung his legs off the edge of the shoulder, letting them dangle before he dropped down to the soft mattress below. He landed in a pile, bouncing slightly before he caught his balance. From this angle, he was completely bathed in shadow from above, Dean’s shoulders blocking the light.

Making his way over to the book, he glanced up at Dean. “Do you at least have something my size to write with?”

Dean looked like a deer in headlights when he was put on the spot. He glanced between Sam, who stood all of two and a half inches tall, and the pencil in his hand, which was easily five inches, if not longer.

“Uhh…” Dean trailed off.

Sam rolled his eyes. “Looks like you’ll still be doing the work,” he jabbed.

John crossed his arms, staring down at the brothers. “Mind explaining what the hell you were thinking?” he demanded of Dean. 

Dean stiffened, annoyance flashing in his eyes. Sam was surprised. Even after everything, he was so used to Dean doing whatever their dad said like a good little soldier. But now, the older brother was in clear disagreement with the hunter.

Dean clenched a fist. “He’s not going to learn anything if we just lock him up all day. And I was watching out for him. No one ever saw him in my hood.”

John scowled. Sam shrank a little closer to Dean, intimidated by the angry glare. No matter how much he understood intellectually that he wasn’t going to be hurt, it was hard to see someone bigger than a building so angry.

Dean’s hand scooped Sam off the table when he wasn’t looking, too distracted by their father. He was cupped protectively by Dean’s chest while the boy continued arguing. “Dad, if we just keep him locked up like that, he’s going to get bored and he needs to stay sharp if he’s going to be this size, at least until we find a cure. You can’t watch him all day. At least if he’s with me, he’s safe.”

John didn’t move for a minute, sizing both his sons up with his arms crossed. “If anything happens to him, you’re responsible,” he snapped at Dean before stalking away.

Sam could feel the tension leak out of Dean the moment he was turned away. He didn’t say a word, holding his tongue as gratitude filled him. He wouldn’t be stuck in a massive room all day with nowhere to go. 

Thanks to Dean, who’d stood up to their father for the first time.

Having Sam’s trust is the most important thing in the world to Dean, especially with the new change. He’ll probably be going along with shenanigans a lot from here on out, because there’s no way he’d just leave Sam high and dry with John after a fight like that. Gotta stick together!