"...into a two year-old?" Ty grinned. "I'm not keen on changing diapers, but we can manage pullups or training pants."
"OK! That will be fun!" Jeremy's voice cracked with excitement.
"I wish Jeremy would regress back to a two-year-old who is potty trained but still wets himself, has all of his grown-up memories, but can only talk and think to match his physical age."
"Hey! I don't want to think like..." Jeremy's protest was cut off as confusion filled his mind. His clothing reformed into a Teddy Bear T-shirt over pullups with cartoon racing cars on them, shrinking with his body until he was a toddler. Jeremy stared down at his rounded tummy and wiggled stubby fingers, then felt his face. "I little boy!" He proclaimed proudly, then frowned. "Why talk bad?"
Ty squatted down and picked the tot up, hefting him in his arms with a grin. "A two year-old who talked like a high schooler would get too much attention. Anyway, you wanted to be a little kid - thinking like a toddler is part of that." He thought a moment and then grinned again. "You know, anything that changes on you now would be something you grow up with."
"Huh?" Jeremy wrinkled his face up, trying to understand Ty. "Be... not Jeremy?"
Ty shook his head. "Nah, nothing drastic." He thought a moment, and then said "I wish for Jeremy to be a ginger kid who will grow up to be slender and athletic, hung like a horse, and physically attractive to everyone."
Jeremy's hair suddenly turned bright copper-red and his eyes became emerald green as his skin paled and a smattering of freckles appeared on his nose. He looked way different now, though his facial features were mostly the same.
Ty carried Jeremy over to the mirror so he could see himself. The red-haired toddler gaped at his reflection, reaching out to touch it before giggling. "Jeremy!"
What to do now? Ty could age him back to a teenager, or let him stay a toddler for a while. But that could cause some problems - everyone would want to know where the little boy had come from.