NamiVivi

NamiVivi is the FEMSLASH ship between Nami and Nefertari Vivi from the One Piece fandom.

Canon
Nami met Vivi when the other stawhats did. Vivi was using the name Miss Wendsady. Later Nami tries to get Vivi to pay her one billion berries in order for the straw hats to help her. In the time Vivi ventures with the straw hats, the pair becomes closer. Nami ends up dropping the one billion berries deal because of their friendship.

The two hit it off pretty quickly. Many times during the Alabasta and the few previous arcs, they get along well and have fun together. Vivi is there during the Drum Island arc and helps get a doctor to Nami. After the defeat of Crocodile, Nami and Vivi are seen bathing together. Nami becomes upset when Vivi doesn't join the straw hats and stays in Alabasta.

Nami and Vivi are opposites. Nami comes from a poor family with only a mother and sister. Vivi is a princess and comes from a richer powerful family. Their personalities are also different. Nami is a hot headed realist, compared to Vivi who is calm and idealistic. Under stressful moments their personalities become to switch. Nami becomes the calmer one, and Vivi is more frantic.

Fanon
This ship gained attraction and fans because of the Alabasta arc. NamiVivi is the most popular femslash ship in the One Piece fandom. Although, it still is a relatively unpopular ship. It is the 2nd most written ship for Nami, and the most written for Vivi on Ao3. Many fans ship NamiVivi alongside ZoSan, and less commonly Frobin.

Trivia

 * They switch personalities when something devastating happens.