Rarity never really thought of Luna as a friend; they've barely ever even spoken. When Luna decides to step in when Rarity starts working herself to death and obsessing over her career, the pair grow closer than either them or anyone they know ever expected. Feelings unfamiliar to Rarity and painfully familiar to Luna bloom betwixt the two, but they both go about their lives as they try to make sense of it all.

Inspired by, based on, and a gift for the blog Ask Luna and Rarity. And the person who stole the url can go to hell.