Elsanna

Elsanna is the name of the pairing between Princess Anna and Queen Elsa from Frozen. Though not one of the most popular ships, this pairing has many followers. Like Twincest, Elsanna is frowned upon by some, but still retains a following.

Relationship Overview
As sisters, Ana and Elsa naturally love one anothervery much as sisters should. As children, the two were very close, using Elsa's powers to enjoy the joys of winter anytime anyplace. The accident that left a white streak in Anna's hair left Elsa to sever ties between them, leaving both alone and lost until Elsa's coronation.

After Elsa's powers were revealed in front of the entire kingdom, Anna followed her (with help from Olaf, Sven and Kristoff) up to her brand new Ice Castle. Anna hopes the reconect their bond, but Elsa tries to talk her into leaving, not wanting to hurt her again. Anna reveals that Elsa accidently cursed the land in eternal winter, causing Elsa to freeze Anna's heart by accident and forcing her to create Marshmallow to "escort them" out while Elsa ponders what to do.

Hans and his posse manage to take Elsa back to the palace, chaining her in the dungeon, while Kristoff takes Anna back to the castle, hoping that a kiss from Hans would break the curse. Hans reveals his intentions to Anna, leaving her to freeze as Elsa's powers cause the dungeos to collapse, allowing her to escape. Elsa, Anna, Hans, Kristoff and Sven fight against the blizzard on the fjord, as Anna is left with two choices; go to Kristoff and unfreeze her heart or stop Hans and save Anna. She chooses to save Anna, freezing into solid ice. Elsa weeps, her arms over what was left of her sister, only for Anna to return to normal, her actions serving as the act of true love needed to unfreeze her heart. Realizing this, Elsa is able to unfreeze Arendelle and bring back summer, finally gaining control of her magic.

This pairing spawned from fanart and fiction, often depicting them as either very close friends or lovers in secret.

Fanfiction
Note: Please add only ones that are part of the RotBTD fandom