One interesting plot could be Aang and Katara exploring a new, hidden air temple together. They might discover ancient airbending techniques and secrets that help Aang further his mastery of airbending.
Another plot could be Aang and Katara getting involved in a conflict between two different tribes. They would have to use their bending skills and their diplomatic abilities to resolve the conflict. Aang, with his knowledge of different cultures as the Avatar, and Katara, with her empathetic nature, would work together to bring peace. This would also give them a chance to grow closer as they face challenges side by side.
Well, in addition to Aang and Katara, there might be other characters that play important roles. For example, Sokka, Katara's brother, could show up and offer his strategic thinking to help Aang and Katara in their adventures. Also, Toph, the earthbending master, might make an appearance. Her earthbending skills and her no - nonsense attitude could add an interesting dynamic to the story. However, at the core, it's still Aang and Katara who are likely to drive the main plot forward in this fanfiction.
One interesting Katara and Aang fanfiction could be about their adventures after the end of the original series. Maybe they travel to new lands and discover new bending techniques together. Another could be a story that focuses on their relationship development during a time when the Fire Nation is trying to make a comeback. There are also fanfictions that might explore an alternate universe where Katara and Aang meet in different circumstances, like if Katara was from the Fire Nation and Aang was from the Water Tribe.
There could be a fanfiction where Katara discovers she's pregnant during a journey. They then have to cut their adventure short and return to a more stable place. Along the way, Aang uses his airbending to keep Katara comfortable during the pregnancy, like creating gentle breezes to cool her when she's feeling hot. This would show their love and care for each other during this special time.
One interesting story could be that Aang and Katara meet in a different time period, like in a modern world. They have to adapt to new technologies while still maintaining their connection. Aang might be fascinated by things like cars and airplanes, and Katara could be intrigued by modern medicine.
One plot could be the challenges they face as they prepare for the new life. Maybe they struggle with how to balance their duties in the world with raising a child. Another could be the reactions of their friends and family. Their friends might be excited and offer different kinds of support, while their families could have different expectations.
One scenario could be during a festival. There are colorful lights and happy music all around. Aang and Katara get lost in the crowd and end up in a quiet corner. The festive atmosphere gives Aang the courage to finally kiss Katara. Another could be when they're on a mission together and almost lose each other. When they're reunited, the relief and joy lead to their first kiss.
Maybe a plot where Aang and Katara's family gets involved in a diplomatic mission to the Fire Nation. Their children are exposed to a different culture and way of life. Along the way, there are some misunderstandings and cultural clashes, but in the end, they manage to strengthen the relations between the nations. And during this time, the family also discovers a hidden secret about the Fire Nation's past that could change everything.
One idea could be that their kids discover a new bending technique that combines air and water bending in a unique way. For example, they create a sort of ice - air blast that can freeze and shatter objects simultaneously. Another plot could involve the kids going on a journey to learn about their parents' past adventures and in the process, they face challenges that test their own bending skills and teamwork. They might encounter an ancient spirit that only responds to a combination of air and water bending, and they have to figure out how to work together to communicate with it.
Some appropriate types include ones that focus on their friendship development. For example, fanfiction about their travels together after the end of the war, how they help rebuild the world. Another type could be about their training together, like Aang teaching Katara some advanced waterbending techniques or Katara helping Aang with his spiritual growth.
One popular 'Aang Burns Katara' fanfiction might be about a time - traveling adventure where Aang accidentally causes a fire that endangers Katara, but then uses his Avatar powers in a unique way to save her. It could explore their relationship under stress.