Jeris was taking a tour of the jungle when he got separated from the rest of the group. He was then abducted by a bunch of cannibal furs. They ripped off his onesie and diaper and left him naked in a cage. Using a spare diaper pin, he made himself a leaf diaper as they pulled him out and threw him into a quarry they used as an arena. Picking up a crude spear, Jeris wet his diaper as he saw a massive prehistoric dragon approach. Fortunately, he managed to get out of this, and a military team swept through the area, wiping out all the cannibals.
And just a reminder, I have a challenge where you have to draw you character in a leaf diaper. Winners receive a Safety Pin of Victory. But make sure you read the rules here: http://www.furaffinity.net/journal/7374536/