Because my fics aren't in the same place. You can find them here, on AO3 and FFNet. Complete list of my fics and where you can find them under the cut.
( MASTER FIC-LIST )

Title: Warmth (900 words) by ren
Chapters: 1/1
Fandom: Rise of the Guardians (2012)
Rating: General Audiences
Warnings: Author Chose Not To Use Archive Warnings
Relationships: Jack Frost & E. Aster Bunnymund
Characters: Jack Frost, E. Aster Bunnymund, Tooth - Character, Sandy, North - Character
Author's Notes:
- Written in 2012 =)
Summary:

( Jack may be a winter sprite. But even he gets cold sometimes, and fur is pretty warm. )