Vampirism

Twilight gives Rarity a potion but it goes awry and she becomes a vampire. She has one week to feast on blood or she will die. What's a fashionista to do?

After Twilight mixes up a potion and forces Rarity to try it, the fashionista becomes a vampire and soon learns that she has one week to feed on somepony or she will die. But the idea of drinking blood disgusts Rarity. What will she do?