Jeff watched as his muscles got bigger and bigger. He swelled up from a swimmer's build to a wrestler's build, to a football player's and then a teen bodybuilder. Then he started to edge towards the physique of an adult bodybuilder and then beyond.
Jeff looked at himself as his arms were being pushed away from his sides by ballooning muscles. What the hell?
He looked at the screen and focused on the numbers, finally realizing that instead of typing 58 he'd typed 85, halfway between abnormally huge and the Hulk.
Finally, it stopped. He was not quite the Hulk, but definitely Teen Hulk. He could hardly move.