Lightfly

Lightfly (also known as Stormlight) is the name of the pairing between Astrid Hofferson from How to Train Your Dragon and Valka from How to Train Your Dragon 2. Though it is not a popular ship, it does have its fans.

Popular AUs

 * Modern AU
 * Viking AU

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