what is fiona and cake

Fionna and Cake are fictional characters from the animated television series Adventure Time, created by the Ice King for fanfiction based on Finn and Jakes adventures. Fionna is a gender-swapped version of Finn, and Cake is a gender-swapped version of Jake. They exist in an alternate universe from Finn and Jake, and their adventures are not considered "real" in the world of Adventure Time. The first episode featuring Fionna and Cake is "Fionna and Cake," which is the ninth episode in the third season of Adventure Time. Fionna and Cake have become popular characters in the Adventure Time franchise, and they have their own spin-off series called Adventure Time: Fionna and Cake. The spin-off series is an adult animated television series that follows the adventures of Fionna and Cake in a different universe where magic is not a thing. The show is designed to appeal to an older audience that grew up watching Adventure Time, and it features longer, more plot-driven episodes that deal with more mature problems.