Chuck Taine was born on Earth with no powers. He received his ability to inflate when he accidentally drank a super plastic formula which he thought was soda pop. He applied for membership in the Legion of Super-Heroes, but was at first rejected. However, after he used his new power to defeat a robber using electric weaponry (which did not affect him because his bouncing kept him from being grounded), he was admitted and took the codename Bouncing Boy. With his good humor, wit and charm, Taine appointed himself the Legion's "Morale Officer".