The boy in the diaper and onesie would be the central figure. There could also be a pet in the story, like a dog or a cat, that is curious about the boy's diaper and onesie. The pet could be another important character, adding some fun and chaos to the story as it tries to play with the boy's diaper or chew on the onesie.
The plot could be about a baby boy who is just learning to crawl while wearing his diaper and onesie. His adventures might include trying to reach a favorite toy across the room or exploring the textures of different things in his diaper and onesie.
Since I don't know the exact 'diaper boy story', it could be the boy himself as the main character. There might also be his parents or caregivers if the story focuses on his family situation.
Maybe the boy accidentally got his onsie stuck while trying to take it off in a hurry. He could be tugging at it and getting frustrated.
Since I don't know the details of the story, I can't say for sure. But it might be the diaper - wearing boy himself as a main character. There could also be a camp counselor or a fellow camper who plays an important role.
Since I don't know the exact story, the main characters could be the diaper boy himself, obviously. And probably the daycare workers who take care of him.
Since I don't know the exact story, it could be the diaper boy (shota) himself as the main character. There might also be his family members, like his parents or siblings, who play important roles in his life related to the diaper situation.
Well, a doctor could be an important character. If the diaper regression has a medical or psychological cause, the doctor would be involved in diagnosing and perhaps treating the boy. Also, a sibling could be a main character. Siblings often have a complex relationship, and in this story, the sibling might feel embarrassed, protective, or just plain confused about the boy's situation.
In typical 'DeviantArt Diaper Boy Story', the main character is the diaper - wearing boy for sure. Besides him, there could be a wise old man or woman who serves as a guide. Maybe there's a group of friends, some of whom are accepting of his diaper - wearing while others are not. These friends can add drama and conflict to the story. There could also be a villain who tries to take advantage of the boy's unique situation with the diaper.
He could ask someone for help. If it's a zipper that's stuck, an adult or an older sibling might be able to unzip it carefully.
A boy in a diaper, let's call him Joey, was at a family gathering. He saw a big cake on the table. He waddled over as fast as his diaper - clad legs could carry him. Just as he got there, he tripped and landed right in the middle of a pile of presents, his diaper sticking up in the air. Everyone burst out laughing at the sight.