Summary: Stuck in traffic, a group of girls are suddenly hit with the need to urinate. But when the driver fills up the only bottle in the car, her passengers find their only reiief is in the form of a large towel in the backseat. They must pass around the single towel and relieve themselves little by little into it (or it'll flood), sitting in each other's wet spots and having to deal with using the bathroom right next to each other. Naturally, they end up fighting over how much of the towel one person used, if someone is too shy to go, how much more can the towel hold, etc.
Categories: Original Characters: None

Summary: A woman, who is training to be part of some warrior sect, undergoes a test. She is told to guard a certain thing from dusk until dawn, never sitting down or taking a break for food, water, or restrooms. She does. In the morning she learns, amid the laughter of her colleagues, that the real test was to tell that her sensei was lying when he gave her this ridiculous assignment. She failed. She is in fact the first person in the history of this institution to actually forego resting, eating, drinking, and other bodily functions in order to carry out this fake order. This could be a wetting story, a messing story, or just a desperation story, and could probably be fit into a number of animé or games.
Categories: Original Characters: None

Summary: It occurs to me that no one's written a story about a girl wetting or messing herself while riding a bike.
Categories: None Characters: None

Summary: Ok this isnt a challenge it's a suggestion for rainbow that he might like. Elizabeth in bioshock infinite lived alone in a tower since she was little, so she wasn't potty trained. She thinks pooping her diaper is normal, and might not even bother to change it until it is WAY to full. / alternate thing, she because of tears and some random plot stuff, she now poops for multiple realities of her, basically making her have to go every few minutes. Just ideas. You are probably lost if you haven't played the game but if you have you know what I'm talking about.    
Categories: None Characters: None

Summary: A girl is infused with bird qualities, thanks to magic or technology. This allows her to transform into a bird and fly great distances. This could be advantageous if she lives in a setting where transportation is poor, like say Europe in the Middle Ages. But her abilities also come with some side effects. Even when she's not in bird form she's compelled to eat gravel, like some birds do. Also, like a bird, she's captivated by shiny trinkets. This behavior leads to her stealing and eating something valuable. It could be a magical amulet, a wedding ring, the contents of a pirate chest, or maybe her own life savings. This sets up a poop-centered plot.
Categories: Other Characters: None

Summary: In a world where everyone discreetly does their business in diapers with all the politeness of saying "excuse me" while they go, one girl has a thing for holding her waste in to keep herself as clean as possible. To that extent, she'll slip off her diaper when no one is looking to do her business on the ground or into a container, and even dare to walk around without a diaper for the sheer rush of it. When she hears about a rare fetish called "toilet training", where participants wear a thin cotton "panty" instead of a diaper and strive to hold their pee and poop in long enough to empty it all at once into a "potty," she resolves to try it out for herself...
Categories: Original Characters: None

Summary:

Black Widow (from the Avengers) has to pee during the scenes where they are arguing in the lab and ends up wetting herself after Thor knocks Hulk through a wall.  (Giving a whole new meaning to why Back Widow said she had been "compromised" later in the movie.)

Categories: Other Characters: None

Summary: This could work for any tough female character who is some kind of fighter, bounty hunter, policewoman, or other action hero type. She participates in a tense and terrifying battle with a brimming full bladder. It's a situation where many ordinary women would wet themselves, but she never loses control, or lets anyone know she has to go. But when she goes home, the story takes an ironic twist. Her roommate (or boyfriend, friend etc.) tickles her, or maybe just sneaks up and startles her. Whatever the case, they mean no harm, but they catch our tough heroine off-guard, and she wets herself and is humiliated.
Categories: Other Characters: None

Summary: Someone who's just taken human form (there are many manga, anime, and video games with characters like this) takes a while to master bladder control (and possibly bowel control as well), and has to wear a diaper for a while.
Categories: Original Characters: None

Summary: Any female chracter of either Buffy or Angel desperateley needs to use the bathroom during a situation where they can't immediately leave to use the toilet you choose if they make it or not.
Categories: Other Characters: None

Summary: Oolong is angry at Bulma for giving him a laxative(that actually happened in the series not sure what ep.) He shapeshifts into a man and pretends to be a medical supply inspector and goes to  a pharmacy and says he needs to test there strongest laxative. Once he gets the laxative he says he wants to cook bulma a meal as a sign of friendship and when she accepts his offer he puts the entire bottle of laxatives in the food he makes and she eats all of it. The next morning she starts to feel the effects and after a  few hours on the trail she runs into the woods and has diarrhea in a bush or something
Categories: Dragon Ball Characters: Bulma