A Heart of Ice (Jack Frost x Cupid!Reader) [COMPLETED]

When the evil Pitch Black threatens the children of the world, (Y/N) and Jack are chosen as two new Guardians to defend them. The only problem is, nobody trusts (Y/N), and nobody takes Jack seriously.
As a shadowy past threatens to overtake Cupid, she must confront the darker parts of herself or lose the person she cares most about in the world.

Note: please don't read this one if you're under 16, 15 absolute minimum. It's not appropriate and it makes me very uncomfortable to see actual children in my comment section. Please respect that and come back when you've grown up a little, I'm not going anywhere and neither is this fic.

Update: this is now on both AO3 (@hollybell51) and tumblr (@hollybell51) in a much more refined version, different tense and narrative voice and everything. It's a million times better in every single way, plot, characters, writing, literally everything. Please consider going and checking those out, it'd mean a lot to me.

*I don't own any of the characters, I don't own the film, and I don't own most of the events. They're property of dreamsworks. I also don't own the concept of Cupid!Reader, I don't know who did that first.*
I suck at descriptions I promise this is a cool story though.