Well, it could be about a boy who eats a lot of strange foods at a magical feast and his belly starts bloating in a very exaggerated way. Maybe there are some fairies or magical creatures around him who are both amused and concerned about his bloated state.
The main character might be a boy named Billy. Billy is a bit of a glutton and he doesn't know when to stop eating. So, in the fanfic, his overeating habit could be the cause of his belly bloating. For example, he enters an eating competition and eats way too much, resulting in a very bloated belly.
One cause could be emotional eating. People might overeat when they are stressed, sad or bored. Another cause can be a lack of portion control. If one constantly eats large amounts of food without considering the right portion sizes, it can lead to overeating and eventually a big belly.
Overeating is the most common cause. When you eat more food than your stomach can comfortably hold, it gets overstuffed. For example, if you go to a buffet and keep eating without listening to your body's signals of fullness.
Well, 'bloating fanfic' can be thought of as fanfiction that has gotten out of hand in terms of its length or content. Maybe the writer is trying too hard to expand on the original source material's world or characters. It could end up making the story feel cumbersome and less engaging. For example, if a fanfic about a certain movie character starts adding dozens of side characters and sub - plots that don't really add much to the main story, it becomes bloated.
One possible cause could be food intolerance. For example, lactose intolerance can lead to bloating when dairy products are consumed. Another cause might be overeating. If you eat too much in one sitting, your stomach has to stretch more than normal to accommodate the food, which can result in a bloated feeling. Also, certain foods like beans are known for causing gas and subsequent bloating as they contain complex sugars that are difficult for the body to digest.
Poor diet is a very common cause. Eating too many processed foods, high in fat and sugar, can lead to a big belly. For example, those who consume a lot of fried foods regularly are likely to gain belly fat.
Food challenges or competitions can lead to a painfully stuffed belly. People participating in these often try to consume a large amount of food in a short time. Also, buffet - style eating can be a culprit. With so many options available, it's easy to keep piling food on your plate and overeat. Some people also have a hard time saying no when offered more food, which can result in over - stuffing their bellies.
I'm not sure specifically as it could be a very niche or made - up fanfic. It might be some sort of creative work within the Naruto fandom that involves the character Tenten in an unusual or unique scenario. But without reading it, it's hard to say exactly.