One main theme could be transformation. When Harry is filled with water, it might symbolize a change in his character or abilities. For example, he could become more fluid in his thinking or more adaptable, just like water.
A third theme could be discovery. Maybe the water inside Harry holds some sort of secret or power. As he tries to figure out what it means to be filled with water, he uncovers new things about himself, the wizarding world, or the magic that surrounds him. This could lead to him having new adventures and making new alliances.
One popular 'Harry filled with water' fanfiction might be 'The Watery Adventure of Harry'. It's a story where Harry gets caught in a magical rainstorm that floods the Hogwarts grounds and he has to use his magic in unique ways to deal with the situation.
One possible theme could be transformation. The girl being filled with water might symbolize a change, like a metamorphosis into something new or different.
Perhaps it's part of a wild adventure. Harry could be exploring a mysterious place and accidentally falls into a pool of water in a very awkward position, making it seem like his butt got filled with water. This could lead to a series of events where he has to figure out how to dry off and deal with the embarrassment.
Perhaps a group of friends who are all fans of Harry Potter. They could be sitting around one day, joking about different scenarios, and then one of them decides to write it down as a fanfiction. They might share it among themselves for a good laugh and then it somehow makes its way out to a wider audience.
One possible plot could be that Hogwarts is flooded due to a spell gone wrong. Harry and his friends have to use magic to navigate through the water - filled corridors, while also trying to figure out who cast the spell. Maybe they discover it was a first - year student who accidentally unleashed an ancient water - summoning charm from a forbidden book.
The Hogwarts ghosts would be rather amused by the whole situation. Peeves, the poltergeist, would be causing even more trouble, perhaps making waves in the water or using it to play tricks on the students. Meanwhile, Hagrid would be concerned about the magical creatures on the grounds. He'd be trying to find ways to keep them safe from the rising water, and might even try to use his giant strength to build makeshift dams or barriers.
A novel that was filled with water usually referred to those novels that were empty in content, lacked creativity, were repetitive, and had bland plots. These novels may repeat the same plot, characters, and scenes in large numbers. The lack of depth and cohesiveness makes people feel bored and bored. In addition, novels that were filled with water often had serious plot loopholes and logical errors that made readers feel confused and disappointed. In order to avoid writing a novel that was full of water, he tried to make the story more interesting and fascinating. At the same time, it was also necessary to pay attention to character shaping and emotional expression so that the characters had a distinct personality and depth so that the readers could truly understand and resonate.
Relationships could also be a main theme. In a 'the water novel', characters might interact in unique ways because of the water setting. For example, they could be shipmates on a long voyage, and they need to cooperate to sail the ship. Or they could be rivals fighting over access to water resources. So relationships, whether friendly or hostile, can be an important part of the novel.
One common theme is revenge. Since Naruto has a lot of enemies and a tragic past in the original series, in rage - filled fanfiction, he might be driven by a desire for revenge against those who wronged him or his village. Another theme could be power. His rage might fuel his pursuit of greater power to protect himself and others. And also, there could be themes related to isolation, as his rage might make him push people away or make others fear him.
Perhaps in a more symbolic or magical sense, water could be a source of power for the teen girl. If it's a fantasy - based fanfic, the water could be an element that she has been filled with, like she has absorbed the power of water and can use it in some way, such as for healing or for combat. This would make for an interesting character arc in the fanfic.