Big Boy Undies: Bro’s Room

“You’re about to get us killed!” August joked.

“No, you are,” Mason bumped shoulders with him. The two young men were laying down next to each other at the foot of a bed playing a retro game. Their avatars crashed into colorful explosions as a ‘Game Over’ screen popped up in red vibrant letters. They mockingly pointed fingers at the other then laughed before continuing.

—

August knew he wasn’t supposed to sneak into his older brother’s room, let alone take Mason in there. But Gideon was away at college and what was the real harm? More importantly, Gideon had a weird gaming system called a Nintendo 64 that August had to play more of. Over the summer, Gideon played a few games with his little brother, but never enough. Then Gideon headed back to college a few days ago, absolutely barring August from playing without him, stating his little brother would break it. 

To be fair, August had always been banned from Gideon's room since he started college, but this was the first time Greyson actually had something August cared about. Gideon left the system at home stating: he'd never take a collector's item to college. 

His older brother was usually good at locking his door so that August never got in. Luckily enough, their dad was not. When Gideon left, he still had some leftover laundry that their dad cleaned then put in his room. August had been talking up the gaming system for days getting Mason invested. They were hanging out in August’s room, when they noticed the purple light from Gideon’s lava lamp spilled into the hallway.

 August’s dad was nowhere in sight. 

“Come on!” August tugged on Mason's arm.

“Won’t your brother be mad?” Mason shook his head.

“But we’ve gotta play the game. I’m telling you, it’s soooo cool.” He whined. Without words Mason followed his friend into the older boy’s room.

There were posters of video games, artists, album covers, and concert promotions lined across the surface of every wall. Even the door wasn't safe from Gideon’s taste, decorated the same.  The room itself, however, was surprisingly neat with a made bed, no doubt enforced by his dad. Strange trinkets were all over the place, model Gundams, a signed baseball, Yu-Gi-Oh! cards in protective packets. Mason’s eye was immediately on the plasma ball that he HAD to check out.

“Your brother’s room is awesome!” Mason exclaimed as he touched the ball watching his fingers attract rays. 

August didn't answer. His plan had been to close the door, then beeline to set the game up. He didn’t do it though because from the moment he stepped in his eyes were locked on the bed. On top of the comforter, folded neatly, were two pairs of Gideon’s boxers. August couldn't help himself; he was drawn to them. One thought in his mind: He had to wear them. His older brother wore them. Didn't he want to be like his older brother? There was no choice, he started to undress right there in front of Mason.

“Hey, what are you—” Mason's speech never finished because after he saw August, his eyes found what August was staring at. The pull came for him too. Gideon’s boxers were looking kind of cool sitting out like that. He needed to put them on. It’s what the older kids wore. Didn’t he want to be cool?

The two striped, clothes flying, as they shucked their own briefs off. August grabbed a green and red pair, while Mason went for the blue and white one. Once the boys slid the boxers on, yanking them up over their knees with enthusiasm, they came back to themselves. Their faces turned red, while they stumbled to put their clothes back on. Neither one noticed they hadn't removed Gideon’s boxers and left their own briefs in the corner. 

When they were both dressed, August started up the game. The screen popped up and August walked backwards till he sat on the bed, with Mason. He wiped his head sweating.

“You okay?” Mason asked.

“I feel weird.” August admitted. Then he hunched over as his abdominal muscles tensed. They rippled under his skin in flux, trying to create room for…something. All at once August had the notion that his body was too small. He slid off the bed dropping to his knees. His body tore through his shirt as his chest and back developed at an alarming rate. Years of training at the gym found their way to August body. The shorts he had on for the summer split down the middle as his ass popped out in Gideon’s boxers. August was getting taller and older, with every passing second, there was just more of him taking up space. 

“I’ll get your dad,” Mason got up off the bed, frightened, but as he ran for the door, froze, shooting straight up in height, clothes gone. Pecs forced themselves onto his chest, going from unimpressive to knockout rapidly. Abs completed the look etching on his skin. His shoulders were next getting broader as the muscle mass in his arms increased. 

The two stumbled around trying to stand up or move forward, they caught sight of the other struggling. Both their thighs turned tree trunk-size in unison, filling up the boxers’ leg holes and drawing the material tighter on their asses. Their cocks were lengthening in the front as their balls dropped heavier, fuller, producing new sperm. The more it went on the more obvious it became, they were soaring to Gideon’s age, college aged young men. 

Their faces were the last things to change, jawlines settling in, angles sharpening. Their boyish features were gone like melted butter.

—

“That’s another game over for us.” August sighed. He was resting, back against the bed’s headboard. Not that he even cared about the game anymore. He moved solely so that he could get a better look at Mason’s ass. There was a new desire developing inside of him, a new game he wanted to play.

Mason turned back and caught August's lustful look with a smirk, “You staring at my ass bro?”

August only nodded, words failing him at the moment. A swift twist of the body and Mason was leaned over August, ass on August’s leg. Mason gently grabbed the back of August, letting his right hand enjoy the stands, while his left wandered up August’s inner thigh, “Good, because I was staring at yours earlier too.”

Their lips met.