"Wha... But..."
It took a long few seconds for Dan to even begin to process the current state of things. Where a moment before he had been wearing a pair of boxers, like would be expected of someone his age, he was now instead clad in a thick disposable diaper while standing in the middle of the bathroom. One that felt quite heavy and clearly contained something that was rubbing up against his butt within it...
"I-I... Uh..."
Nngh... There was an obvious smell to it as well.... It was unavoidably obvious just what had happened at this point and just what it was that was inside of the boy's new diaper. But that...
"... Heh..."
Actually, the more he thought about it...
Dan considered things for a moment, then using a single finger he poked the seat of his diaper. The resulting impact provided a firm squishing feeling, both against his finger and especially against his bottom, that did certainly feel uncomfortable, but at the same time quite... Impressive. It seemed so big, and after bending over and taking a sniff around the garment the boy couldn't help but grimace at just how it smelled. And yet...
"Pffft.... Hehehee...."
The smile on Dan's face grew more and more pronounced as the reality of the situation set in, a sense of pride rising up within him. After a loud, "Snk!" of a semi-suppressed snicker, the boy almost instinctively began to clap his hands together and loudly, excitedly began to repeatedly declare, "I made a boom-boom! I made a boom-boom! I made a boom-boom! I MADE A BIIIG BOOM-BOOOOM!"