"You know runt, I just had this weird thought... how would you like to graduate from second largest dude in the house, to largest?" Cody asked. "You get to be bigger, and I can finally ask chicks out without them thinking I'm a freak." Before Matt could even respond, Cody reached out and grabbed his step-brother's shoulder.
Matt didn't know what to think as a warming sensation flooded him, pushing his body away from the ground, making it larger, wider, and filling him out with more muscle than his already large frame. He watched as he gradually grew taller, and his step-brother grew shorter. He reached eight feet, but to his surprise he kept growing.
When Matt ceased growing he was nine feet tall, a good two feet taller than his now six foot tall step-brother, and with a muscular frame so large he was Superman twice over. He flexed massive biceps about twice the size of Cody's head, and Matt's pecs were like massive rounded boulders. Each abdominal in his six-pack was the size of a tile.
"Now I see why you didn't like being large," Matt said, having trouble moving in his room.
"Your problem now sucker!" Cody cried gleefully and left the room, shutting the door behind him.