A frequent theme might be the exploration of their powers. Naruto has his ninja skills and Katara has her water - bending. Fanfiction could delve into how they learn from each other's abilities. Also, a theme of cultural exchange could be present. Naruto's shinobi culture and Katara's Water Tribe culture are very different, and writers might explore how they interact and influence each other in the story.
Well, a common theme could be the discovery of new worlds or dimensions. Given that they come from different fictional universes, fanfiction could involve them accidentally or intentionally traveling to each other's worlds. Additionally, a theme of self - discovery might be there. As they interact with someone so different from their own world, they could learn more about themselves and their own capabilities.
One common theme could be the exploration of their deep emotional bond. It might start with how they first met and how their feelings gradually grew. Another theme could be about overcoming obstacles in their relationship. Maybe there are things in their world or from their pasts that they have to deal with before fully coming together.
A third common theme could be the exploration of different cultures. Naruto comes from a ninja - based culture, while Robin is from the world of pirates in One Piece. In the fanfiction, they could learn about each other's cultures, share their values, and perhaps even introduce elements of one culture to the other. This can lead to interesting storylines and character development.
Another challenge is blending the two different worlds. Naruto's ninja world with its jutsus and clans, and Inuyasha's feudal Japan - like world with demons and magic. Writers need to find a seamless way to bring these two together so that it makes sense for the story. It might involve creating new rules or concepts that bridge the gap between the two universes.
One common theme is the reaction of the other characters. For example, how her friends or family members respond to the news of her pregnancy. It could be a mix of joy, surprise, or concern depending on the story.
One common theme could be the journey of building a family. Since Tenten is pregnant, there might be a focus on how Naruto and Tenten prepare for the arrival of the baby, like setting up a nursery or choosing a name.
One common theme could be friendship. Naruto is all about making friends and bonds, so even in this unique pairing, the idea of Naruto and Tonton forming a strong friendship could be explored. Another theme might be discovery. Tonton is an interesting character, and Naruto could discover new things about the world or himself through their interactions.
One common theme could be romance. It might explore Katara's relationships in a more adult and passionate way. Another could be her growth into a more self - assured and powerful woman in an adult context. Maybe dealing with political intrigue as an adult figure in her community.
Friendship is also a big theme. Katara often forms new friendships in the crossover fanfictions. She has to learn to trust and work with new characters from different universes. And adaptation is very common too. She has to adapt to new environments, rules, and challenges in the crossovers.
If we were to assume appropriate content, one main theme could be the complex family bond. Even though the idea of a 'lemon' aspect adds a strange twist, it might explore how their relationship as siblings is different from a normal one. Maybe it delves into how they support each other in a more emotional and unique way.
If we assume non - inappropriate 'Naruto Street Fighter' fanfiction, common themes could be epic battles. Just imagine Naruto using his Rasengan against Ryu's Hadoken. Another theme could be character growth, like how a Naruto character might adapt to the different fighting styles of Street Fighter.