He wanted more.
FOOOOOOOOOOOFFFFFFFFF.
Again, he felt himself shoot upwards as the balloon expanded, though not as much this time. Looking at his face in the mirror, Jim hardly recognized himself. He looked more like a man than a boy now. His face even showed signs of stubble. Jim guessed he was in his later teens, an upper classman in high school. The T-shirt he wore felt painted on to his expanded torso and thickened arms, and his shorts no longer reached his knees. Again, he checked out his crotch to see that it had become a real monster. He smiled.
He guessed that he was approximately 18 years old.
“Hey, Big Guy, looking good,” he said in a manly voice. Admiring himself in the mirror, he stared striking bodybuilder poses in order to check out his new muscles. He could only imagine what the kids at school would think if they could see him now. He guessed he was almost 6 feet tall. They would sure think twice about picking on him, seeing as he could bench press even the biggest of the bullies.