Jim was completely astonished. He was like a completely different boy! He was practically a man, and all without having aged a day. "That balloon really does work miracles," he said in a deeper voice.
Before, Jim had never been an athlete; he hadn't even hit puberty yet. Now he seemed to be well into a very generous puberty. He was thickly muscled, had a coat of stubble, his Adam's apple was bigger, he had a big package, and he was very handsome. He could easily be mistaken for an 18-year-old jock, the only youthful thing about him being his handsome baby face under the stubble.
Jim loved it. He told the balloon, "Control the size and maturity of my clothes." As he blew, his clothes grew until he was decently covered again, but this time his shirt seemed to have a V-neck showing his pecs, clung to his and, and his pants fitted tightly to his legs still.
Jim felt great as he walked around the mall. He got looks from a ton of people, especially teenage girls and their envious boyfriends, many of whom were smaller than Jim despite how much older they were.
He decided to mess with other people after he sat down with his food in the food court. But who to choose?