Well, there are often themes related to the power of friendship evolving into something more. The fanfics might start with their basic friendship from the anime/manga and then develop it into Sasuke secretly having romantic feelings for Naruto. Another theme could be the secrecy itself. How Sasuke has to keep his feelings hidden from others, especially in a world where same - sex relationships might not be as openly accepted, and how that affects his actions and decisions.
One common theme is unrequited love. Often, Sasuke is shown as having these secret feelings while Naruto is oblivious. Another theme could be the struggle between Sasuke's pride and his feelings for Naruto. He might try to hide his emotions because of his Uchiha pride or his past traumas.
Well, in many fanfics, the authors might create scenarios where Sasuke shows his secret feelings for Naruto. It could be through small gestures, like protecting Naruto when no one is looking or having internal monologues about his deep connection to Naruto. However, in the original manga and anime, their relationship is complex and while there are strong bonds of friendship and rivalry, it's not as explicitly 'liking' in a romantic sense as some fanfics might depict.
One common theme is secrecy. They have to hide their relationship from their friends and the ninja community. Another theme could be the challenges they face in maintaining their marriage. For example, they might have to deal with misunderstandings or threats to their relationship.
Themes like loyalty are very frequent. Naruto's unwavering loyalty to Sasuke and vice versa is often explored. Family also plays a part. Given their complex family backgrounds, fanfics may touch on how they create a new kind of family with each other. And of course, the theme of rivalry - how they keep pushing each other to be better, even when they become friends.
One common theme is friendship. Their bond is often explored, from how it started to how it endures through all the difficulties they face.
One common theme is the secrecy itself. Writers often explore how Naruto and Sasuke have to hide their relationship from their friends like Sakura and Kakashi. Another theme is the internal struggle they face. They might struggle with their own feelings, especially considering their past as rivals. Also, there's the theme of acceptance. How they come to accept their feelings for each other and deal with the potential rejection from others in the ninja world.
Often, a common plot is set in an alternate universe where Naruto isn't as dense about his feelings. He quickly realizes he likes Hinata and they start a secret relationship. There are also plots where Naruto is jealous when he sees Hinata with another guy, which makes him realize his own feelings. And sometimes, there are time - travel plots where Naruto from the future comes back and realizes he should have paid more attention to Hinata in the past, thus secretly liking her all along.
One common theme is the exploration of their deep - seated emotional bond. In many fanfics, the kiss is a physical manifestation of the intense connection they've had since childhood, which was often masked by their rivalry.
One of the main themes is the exploration of new abilities. The fusion gives birth to abilities that neither Naruto nor Sasuke had alone. Another theme is the concept of balance. Their fusion has to balance Naruto's more optimistic and friendly nature with Sasuke's more brooding and goal - focused nature. And the theme of hope can be seen, as their fusion might be the hope for the ninja world to face a certain doom.
Growth and potential. These fanfics usually show baby Sasuke having some signs of his future great power, like early hints of his Sharingan abilities. It's about his journey from being a baby with potential to the great ninja he will become. Well, in a lot of these fanfics, the relationship between Sasuke and Naruto also gets an interesting start. Maybe they meet as babies or toddlers, and there's some sort of connection or foreshadowing of their future rivalry and friendship.
One common theme is rivalry. The bullying can be seen as an extreme form of their rivalry. Another theme could be redemption, where Sasuke realizes his wrongdoings and tries to make amends.