Ever since Andrew was young he had a weak bladder and bowel control causing him to need to go to the bathroom frequently. It wasn't so bad that he'd ever needed protection but it was pretty time consuming rushing back and forth to the bathroom, and on occasion he would not make it leaving him with quite a mess.
So Andrew choose to wish that was no longer a problem for him. Unfortunately as soon as the wish was granted he felt a weird expansion, his shorts felt like they were getting tighter as something puffed up from underneath that's when he realized what that thing was. It was his underwear!
After making sure the coast was clear Andrew decided to check what on earth was happening so he quickly yanked down his shorts to reveal his boxers had been replaced with a thick diaper! Andrew didn't know what to do he couldn't be expected to spend the rest of the day in a diaper so he had to do something, anything?!