Ty decided that because of his name he should be the king of dinosaurs, Tyrannosaurus rex!
Knowing that a full grown one would be too big, Ty decided to confine himself to a half-size juvinile. He stripped and willed himself to change.
Instantly he grew in size, a long thick tail growing behind him. His legs grew muscular and his feet grew huge! His head grew into a reptillian T-rex head with rows of sharp teeth! "THIS IS COOL!!"
"QUIET UP THERE, BOY!" yelled Mark "DON'T MAKE ME COME UP THERE!"
Ty examined his body closely. The only thing he didn't like was his puny forearms. That was soon remidied. He grew them until they were strong and powerful, with prehensile 4-clawed hands. "Perfect!" he said "I always thought I should have been a dinosaur! Now to show my so-called 'Family'"!
Ty had made himself just small enough to squeeze through his bedroom door without much effort, yet big enough to still be imtimitating. Standing in the landing, he let out a mighty roar!