One common theme is the clash of their different worlds. Naruto is from a ninja - filled world, and Nami is from a pirate - themed world. Writers often explore how they overcome these differences. Another theme could be the growth of their relationship, starting from initial misunderstandings to deep love.
Often, the power dynamics play a role. Naruto has his ninja powers and Nami has her skills in navigation and thievery (in a way). So, how they use their powers to protect each other or work together can be a theme. Also, cultural differences between the Naruto universe and One Piece universe (where Nami is from) can be a common theme in these fanfictions, like how they adapt to each other's cultures while falling in love.
One common theme is friendship. Since Naruto is all about friendship in his own series and Nami values her crewmates (which is a form of friendship), it's often explored in the fanfiction. Another is adventure, as both characters are from adventure - based anime.
Well, I can't really speak for all of them as I don't actively seek such fanfiction. But generally, if it's a crossover like this, there might be themes of two characters from different worlds coming together. Maybe there's some initial confusion or curiosity about each other's powers and worlds. But again, the 'lemon' aspect might add themes related to romantic or more adult - like interactions which are not appropriate for a general discussion.
Another theme is how their relationship affects the crew dynamics. The Straw Hat crew is like a family, and Luffy and Nami's new relationship can bring changes. For instance, some crew members might tease them, while others might be more protective. There are also themes about sacrifice. Luffy might be willing to sacrifice more for Nami when in love, which is a big part of many such fanfictions. It adds a new layer of depth to his character.
The theme of unrequited love that slowly turns into mutual love is also quite common. At first, Sanji might be more openly in love while Nami is focused on other things like treasure or mapping. But over time, through shared experiences and Sanji's consistent care, Nami realizes her own feelings for him, and this transformation is a major aspect in many fanfictions.
One common theme is the growth of their relationship. Usually, it starts with a strong friendship within the Straw Hat crew. For example, in many fanfictions, Nami might start to notice Luffy's selfless nature more during battles or when he's making decisions for the crew. This makes her see him in a different light.
One common theme is adventure. Since they are pirates, their love often develops during their travels and battles. For example, they might rely on each other more during a dangerous encounter with a powerful enemy, and this deepens their bond.
One common theme is adventure. Since both Naruto and Nami are from action - packed series, their crossovers often involve going on wild adventures together.
One common theme is the development of their relationship. Whether it's a budding romance or a deep friendship, it's often explored. Another theme is their mutual respect for each other's skills. Nami's navigation skills and Zoro's swordsmanship are often highlighted and how they contribute to the crew together.
Love and attraction are very common themes. Sanji is often depicted as being head - over - heels for Nami, and his pursuit of her is a central part of many fics.
In nami and sanji fanfiction, the theme of admiration is quite common. Sanji admires Nami's beauty and intelligence, and Nami may come to admire Sanji's loyalty and cooking skills. Another theme is the idea of finding a home or a family. They are both part of the Straw Hat crew, and their relationship can be seen as a part of that family - like bond. Additionally, the theme of facing challenges together, whether it's pirates or other obstacles, and how this strengthens their relationship.