A luffy x nami x robin fanfic often explores the complex relationships among these three characters from 'One Piece'. It could show their different interactions, like Luffy's carefree nature affecting Nami and Robin in unique ways. Maybe it delves into how they support each other during their adventures on the Grand Line. For example, Luffy's determination might inspire Nami and Robin to be braver in the face of danger.
Often, these fanfics highlight their strong female friendship. They show how Nami and Robin, being two intelligent and capable women in the Straw Hat crew, support and complement each other.
One common theme is friendship development. Since they are both part of the Straw Hat crew, many fanfics explore how their friendship deepens over time. Another theme could be adventure - based, where they go on a special mission together and rely on each other's skills.
One possible plotline could be a rescue mission. Maybe Nami or Robin gets kidnapped, and Luffy, with his unwavering determination, sets out to save them. Along the way, he might face powerful enemies, but he never gives up. Nami could use her weather - controlling skills to help in the fight, and Robin could use her devil - fruit powers to gather information about the kidnappers.
There's 'Nami and Robin's Secret'. In this fanfic, they embark on a side quest together and discover a hidden treasure. Along the way, they learn more about each other's pasts and grow closer as friends. It has some really interesting plot twists.
You can try looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, and you might find some great Robin x Nami fanfics there. Another option is FanFiction.net, which also has a wide range of works.
For the OC, give them a distinct personality trait. For example, if they are overly curious, it can lead to interesting interactions with Robin's love for knowledge and Nami's practicality. Show their growth over time, like learning from Robin's wisdom and Nami's street - smart ways.
One key element is their friendship. In most fanfictions, it serves as the foundation. Their different personalities - Nami's feisty and money - loving nature, and Robin's calm and mysterious side - create an interesting dynamic. Another element is the shared adventures. Whether it's exploring a new island or facing a powerful enemy together, these situations bring them closer.
A different approach could be a fanfic where Nico Robin discovers she's pregnant first, and Nami later. Robin could be more calm and collected about it initially, while Nami is a bit more panicked. But as time goes on, they both grow into their new roles as future mothers. The story could also explore how their pregnancies change their relationships with the other crew members and their own personal goals.
Maybe the OC is from a long - lost island with unique knowledge. Robin is interested in the historical aspects of this knowledge and Nami sees the potential for great treasures. The OC then has to deal with the different personalities of Robin and Nami. Robin is calm and intellectual, while Nami can be feisty. Their interactions lead to a series of adventures and a deepening of their relationships.