Rarity is 35, at the height of her career, and a pony that lives in Equestria.
Rainbow Dash is 25, an actual rockstar, and a human that lives on the other side of the portal.

The age difference, the species difference, all of it would already be a problem they might be able to work around if it wasn't for the fact that they're just bad for each other. They bring out the side of each other that's reckless, dangerous and impulsive. They are stupidly competitive, irresponsibly fearless and far too creative for their own safety as individuals, but put them together?

They like each other enough to try something they know will end in disaster.

(Also the sex? The sex is worth ruining your life for)

[A commission for Melesse]