Jim reached out and grabbed the balloon from Cody's hand. Cody looked at Jim with approval. "I guess I really am a size queen!" said Cody. "You look good! With your huge swollen junk and my muscles we're pretty darned hot!"
Cody flexed his biceps and admired the mound of hard muscle. "Look at that! My biceps are the size of a baseball!" said Cody.
Jim was still vexed with Cody, but his heart started to melt when he saw Cody's delight with his muscular body.
Cody was so into feeling his muscles that he didn't hear Jim whisper "Control Cody's muscles!" and slowly start to inflate the balloon. Jim couldn't be so mean as to take away Cody's muscles, but he thought maybe an overdose of muscle might teach Cody to be more respectful of others.
Cody flexed his biceps again. "Damn! Are these guns actually bigger than baseballs? They look more like softballs!" Just then he realized that Jim had the balloon at his lips again and was blowing even more air into the halfway full balloon!
"Not quite as big as softballs... yet!" said Jim and took a big breath and blew into the balloon quickly.
Cody gasped as he looked into the mirror. Gone was the muscular wrestler- junior bodybuilder that he'd become at the beach. Now he was built like a middleweight bodybuilder and Jim was blowing into the balloon as fast as he could! Already it was expanding and Cody grunted as he felt another 10 lbs of muscle grow onto his teenage frame!
Once again Jim blew a full breath into the balloon, which was almost full sized. Cody's muscles expanded another 15 lbs and he was now a muscle freak! "Jim! What are you doing?" gasped Cody.
"Teaching you a lesson!" said Jim and he took one more giant breath and blew it into the balloon and it swelled bigger and bigger. Cody groaned at the sensation of having so much muscle growing onto his body... another 20 lbs. Now Cody was starting to look like a cheap internet muscle morph.
"But why!?" asked Cody.
"What do you think it felt like to have my cock and balls disappear? That is way too uncool." Jim took another deep breath and blew into the balloon. Cody swelled into the realm of fantasy muscle... but it was all real. His quads were massive, his calves were the size of hams and his pecs hung off his frame as giant slabs of meat, his little teen nipples pointing down as the muscle had swelled so large. His traps were enormous, his deltoids looked like bowling balls, and his lats were so wide he filled the bedroom door from side to side.