In non - inappropriate 'Hermione Granger Belly Inflation Fanfic', it could potentially be a metaphor for some kind of internal growth or change she is experiencing. Her character is known for her development throughout the 'Harry Potter' series. So, this strange concept could be used to represent her expanding knowledge or her growing emotional capacity. For example, as she takes on more responsibilities in the wizarding world, this 'belly inflation' could be a creative way to show the internal 'weight' of those new burdens in a fictional sense. And of course, it would still keep her core characteristics intact, like her determination and loyalty.
If we consider non - inappropriate versions of such fanfic, it might explore the magical side effects of certain spells on Hermione. Since she is always experimenting with magic, the 'belly inflation' could be an accidental result of one of her attempts at new magic. This would then lead to a story about her trying to find a solution, perhaps with the help of her friends. It could also be a way to introduce new magical creatures or elements that are involved in either causing or curing the 'inflation'. It would be a unique take on the Hermione character, while still adhering to the general tone and values of the 'Harry Potter' universe.
Well, if we assume non - inappropriate ones, they might focus on Hermione's magical abilities in relation to this strange concept. Maybe her spell - casting could be involved in some way to control or reverse the 'belly inflation' situation. It could also show her problem - solving skills as she tries to figure out how to deal with this unique situation while still maintaining her usual intelligent and resourceful self.