Jim decided to give Kevin one more boost. He blew into the balloon again. And as the balloon grew to a large size, so too did Kevin.
His pecs were big as watermelons overhanging his 8 washboard stone abs. His biceps were thicker than baseball's and his thighs thicker than footballs. His shoulders were broad and his neck thick, while his muscled back tapered down to a thin waist and firm bubble butt. His clothes were shredding at the seams!
Kevin had the body of a god. But Jim decided a couple adjustments were in order. After releasing the balloon, he said, "Control Kevin's age." A gentle blow boosted him to 16, when Kevin had gained another 10 pounds of muscle. Next Jim increased Kevin's sexual attractiveness, as the young man's hair became a styled blond, his eyes bright blue, and his teeth straight and white. Finally Jim took action about the clothes that were popping to pieces on Kevin's huge body. He increased their fit and their trendiness.
Jim suddenly thought of one more thing. How well suited was Kevin to this life anyhow? Even if he didn't remember being different from the way he was now, he was still a gamer geek in a hunky rock's body. He might be badly adjusted. So Jim used the balloon to increase Kevin's jockish personality streak. Now Kevin had a cocky yet charming look on his face and deliberately leaned into positions designed to flaunt his body, bouncing his pecs and flexing his biceps for passing women. It wasn't hard; the shirt was a tight fit and had a deep V-neck that exposed the light blond hair on Kevin's chest.
Meanwhile, Kevin's mother was oblivious, absorbed in her food. When a couple of pretty girls came by and Kevin informed his mother he was going with them, she gave an absentminded gesture with her hand, and he walked off with a meaty arm around each one.
Jim estimated that when they met, Kevin was 5'4", 120 pounds, and 13 years old. Now he was about 6'4", 240 pounds of pure muscle, and 16 years old. He was satisfied with his work. Kevin had several career options in the future.