Sinners in the Hooves of an Angry Goddess

While rummaging through her belongings, Cadance and Twilight stumble across a hilariously embarrassing secret of Luna's.

While on a diplomatic trip to the Zebrican Isles, Cadance, Twilight, and Spike stumble across a hilariously embarrassing secret of Luna's.

Luna doesn't think it's nearly as funny as they do.