As Matt was thinking, he glanced down at his crotch, and sighed. Matt had never been the biggest, in fact he was the smallest in his class. He bemoaned this a bit, saying out loud "if only I had the biggest penis at school... nay, in the whole country!". On his wrist, the bracelet tingled a bit.
Suddenly Matt felt a weird tightening sensation downstairs. Must be another erection, he supposed. Only this felt different. Almost like his penis wasn't getting hard, but growing. What if... Matt suddenly realized he'd been wearing the bracelet.
Practically racing upstairs, Matt could feel more and more pressure against the front of his jeans. Bursting into the bathroom, Matt looked down at his crotch. The front of his jeans, previously flat, now bulged dangerously, the zipper threatening to give way under what seemed to be an enormous endowment sitting behind it.
Matt quickly dropped his jeans and his undergarments. Where this morning had been a small 4 inch boy cock, now stood a proud python. Matt grabbed the ruler he had kept in his room for measuring progress, and leaned it against his new cock. He followed the inch lines up the ruler...
Matt's jaw dropped. He was now the owner of an 9 inch penis that was completely soft and thick as a coke can. Not that it would be for much longer. Matt's improved sex drive, as well as his now tennis ball sized testicles meant that his penis was quickly inflating with blood, growing into a rigid beam that jutted out from his groin. Matt repositioned the ruler, and almost gasped when he saw it nudging the 12 inch mark. Not only that, but it had managed to become even thicker.
"A foot long... a fucking foot long" Matt couldn't believe it. He sat down, simply staring at the massive appendage now attached to his groin.