Jim tried to grab the balloon from Cody but Cody was still much stronger than Jim, even though Jim was so tall now.
Cody easily shoved Jim back and said, " You almost made me let go of the balloon! Maybe I let out a little of the air!"
Jim knew good and well none of the air had leaked from the balloon. Cody's strong fingers held it tightly shut.
"I better be sure!" sad Cody with a wicked gleam. He blew into the balloon again, which swelled bigger than ever, and Jim staggered as he shot up another 4 inches in height to be 6'8" tall!
"Ha Ha very funny!" said Jim.
"Here's a bigger joke then," said Cody. He blew into the balloon again, and Jim shot up until he was 6'10" tall! "Release!" said Cody.
Wow!" said Jim in a deeper more resonant voice. "but I'm too tall for a 12 year old!"
"Control Jim's age!" said Cody. He blew into the balloon. Jim aged rapidly, his body hair rapidly developing and his pubes exploding into a twisty mass of curly hair.
"Unhhh!" groaned Jim as he aged to 16 years old. He was definitely a teen now!