It wasn't long after he gotten on the bus that John realized he needed to go again. He wished he had known before getting on the bus so he could have gone to the restroom but the bus had already started moving and the driver didn't like to make unscheduled stops.
'How could this be happening so often in one day?' he wondered to himself. But wondering about why wasn't doing anything to postpone what was happening at that moment.
The pressure was building fast and John knew he wouldn't holkd out much longer. He looked out the window, frantically scanning the side of the road for a place--any place--that he could get off at to releive himself without soiling his clothes. Unfortunately this required that he not concentrate as much on bladder and bowels and very soon it was too late.
It was worse than the last times, he didn't just mess his underwear on the bus, he wet himself too. Luckily nobody noticed besides John but as soon as he had finished he began to feel weird again. He looked down at his pants to see the dark spot quickly fading and he could feel the poop disapearing as well. But then there was another sensation, like his underwear was getting thicker...
Tugging at the waist of his pants and peering down John was confused at what he saw. The cartoon character birefs he had on at the end of gym were now pull ups with cartoon characters on them.
John didn't know what was going on or what he was going to tell his mom, just that he had to get out of his trainging and into some regular underwear before anyone noticed.