Ty smiled as he watched Dustin run off down the hall and down the stairs. Then Ty thought for a moment. He changed Ty, but why stop there? Ty thought about his wish, then spoke "I wish that people don't develop bowl or urine control until some point in puberty!" Ty stood there for a moment, half-wondering if his wish worked.
Ty decided to test his wish. He said "I wish that I'm an eight year-old boy with the matching body, and the world will change so that I have always been this way, except for Dustin and my own minds and memories." Ty looked down as he felt himself get smaller. He watched as his clothes got baggier and his skin got softer. Any of the minimal body hair he had simply fell out. He quickly made another wish "I wish that all my clothes are meant for my age!" He watched his clothes shrink and tighten around him until they were perfect fits. But there was something different about his clothes.
Ty felt a really soft material around his pelvic area. He lowered his pants and saw he was wearing a diaper! He felt like he needed to poop, as well as pee, but he was unable to hold it for even a second. He felt his waste fill his diaper. His wish worked! He changed the entire world!