Fionna is Serenity???

Did you notice the dress too? 'Revealed on Natasha Allegri's formspring account, the dress she designed for Fionna is based off Princess Serenity's dress from the anime.' - From The Adventure Time Wiki


Fionna and Usagi by =BunniGeisha on deviantART

AT - Sailor Ice Queen by ~Laur- on deviantART