Jonathan was still laughing at his youthened friend.
"Hey!" whinned Sei. You gotta help me, I can't go round like this!" Jonathan just grinned at him in a way that seemed...inappropriate.
"Well, I suppose you're a little old for diapers...but soon that won't be a problem!" He continued laughing.
"What are you talking about!" yelled Sei, cringing at his little boy's voice.
"Just look at yourself! You're running around in a Sonic the Hedgehog diaper and a Cookie Monster shirt! Very mature!" Sei just glared at him...hey, wait a minute. Cookie Monster? He looked down. Sure enough, the shirt had changed...and so had he! He looked about 8 years old now, no longer 10!
"Hey! What's happeneing!" he screamed hysterically.
"Well, if you're going to run around in diapers you should at least have a reason for wearing them..." Jonathon smirked evilly.
"No! Make it stop!" screamed Sei, now about 6 years old and still getting younger! "NO!"
"Yes," said Jonathan simply, waving a hand at the Cookie Monster shirt. It evaporated into nothing, leaving poor Sei standing in nothing but the Sonic diaper! He looked down at himself and was on the point of tears. He was supposed to be a big boy...wasn't he?
"Me...not wittle!" he moaned as he regressed further, into toddlerhood.
"I think you're confused," said Jonathan. "You seem to think you're a big kid, don't you? Well...Sonic is for big kids." He waved a hand at the diaper. The Sonic characters disappeared, leaving a plain white diaper that most babies wore. "You're just a baby, see?"
"No...me no baba..." murmured Sei as he fell to the floor, no only 1 year old and unable to stand. He looked around with a confused expression, then stuck his thumb in his mouth and began to suck it.
"Yes, you are," murmered Jonathan, gesturing once more at Sei. Sei rolled over onto his back, now maybe just six months old, and the diaper evaporated completley, leaving Sei totally exposed on the floor. He just lay sucking his thumb.
"Good," said Jonathan simply as he looked down at his regressed friend.