This Jon.
Jon felt his legs tingle as they became hairless, and he felt himself getting taller, his pants became a denim, mini-skirt, and his black T-shirt became a Halter-Top that said Tease.
He was still getting taller, a full-length mirror appeared in his room, and he was too tall for it, finally he stopped, he must be near 7', probably about 6'10"
"I'm not done yet Jon, pay attention" Jon's hair went into brown pig-tails, and black platform combat boots, boots appeared on her (the change had occurred) feet, thus giving her 6 inches in extra height. this put her at about 7'4" if her original guess was correct, but even if, it wasn't far off.
So Jen how about we go clubbing, you look dressed for it