Jeff decided he would be himself, for the moment anyway.
As soon as he clicked on the button, he felt a surge of strange energy engulf him, as it changed the world around him. His body tingled a moment, before it stopped. Jeff had wondered if it worked, until he began to feel his underwear starting to thicken, growing puffier and tighter around his waist.
He stood up to look as his waist began to bulge out, diaper materializing around him. It was pretty thick too. He eventually realized that, no matter how hard he tried, he couldn’t bring his legs together as the diaper was so heavily padded. He rubbed his groin, excited, listening to it crinkle, before a weird feeling overtook him.
Instinctively, he crouched down a little, feeling a pain in his bowel, which traveled downwards. He soon realized where this was going. He couldn’t stop himself; he began uncontrollably pooping the diaper he was now wearing. The backseat bulged out as he emptied his mess into it, getting heavier and squishier. Stink filled the air as he puuuushed the big poopies into his pants.
Jeff grunted and groaned as he relieved himself, sighing when he finished messing himself. A warmth filled his crotch as he peed himself shortly after, dying the diaper a light shade of gold. He smiled dumbly as he felt the warmth blooming in his crotch, and the enjoyable feeling of the mush in his backseat. He sat down in it without thinking, and heard, and felt, the mess squish against him. It was strange, but not unenjoyable he thought. In fact, he actually bounced himself up and down in his poop, starting to like the feeling of his full diaper.
He giggled as he rocked back and forth; rubbing his warm, pee stained crotch. He could definitely get used to this. He nonchalantly picked up a pacifier that had appeared on his desk, and popped it in his mouth, happily suckling on it as he enjoyed the afterglow of his ‘accident’.