Ripnami

Ripnami is the het ship between Princess Tsunami and Riptide from the Wings of Fire series.

Canon
Princess Tsunami was originally stolen by Webs, Riptide's father, as an egg for the Talons of Peace's dragonet prophecy. While Riptide did not have anything to do with Tsunami's kidnapping before her hatching, Queen Coral of the SeaWings, Tsunami's mother, punished Riptide instead of Webs for Webs's dirty work since his father wasn't present for her wrath.

When Tsunami went to the Kingdom of the Sea, she ran into Riptide who was amazed and confused that there was SeaWing who had never been in the sea before. Riptide is even more confused when he learns that Tsunami doesn't know Aquatic, the language SeaWings used underwater when verbal speech isn't possible; as a result, Tsunami accidentally says a bunch of gibberish, which to him sounds like a very odd form of flirting, before Riptide offers to bring her to the SeaWing Palace. At the SeaWing palace, Tsunami is reunited with her little sister Anemone and her mother, Queen Coral. Her mother orders that Tsunami learn Aquatic from a member of the SeaWing Council, Whirlpool, but Tsunami fails to learn anything from him since he just made her repeat what he is saying in Aquatic without explaining the meaning of the glowing stripes being flashed. On the contrary, whenever Tsunami is with Riptide, he teaches her a bit of Aquatic at a time and she learns more from him than Whirlpool. The two laugh and play together in secret numerous times before getting caught by Queen Coral.

Coral disciplines Riptide and tells Tsunami that Riptide was the son of Webs, her kidnapper. Although Tsunami did not have much of a relationship with Webs, she felt like it was unfair that Riptide was getting punished for his father's treason.

Throughout the series, Riptide and Tsunami usually accompany each other in many events, mostly in The Lost Heir.

Fanon
They are a popular pairing in the Wings of Fire fandom, primarily because of their canonical status and often being shipped alongside other popular WoF ships, like Clayril and Glorybringer.

It is the most popular ship for both characters.

Fandom
FAN FICTION
 * Tsunami/Riptide on FanFiction.Net
 * Tsunami/Riptide tag on AO3

FORUMS
 * The Princess and the Traitor's Son (Ripnami Fanfiction) on the Scholastic Kids: Wings of Fire Community

Trivia

 * It was confirmed by Tui T. Sutherland that Riptide and Tsunami were in a long-distance relationship.