After being cured by Twilight's spell and creating the bat sanctuary in the apple orchard, Fluttershy learns that she still has some bat blood inside her. And that the bat side of her is thirsty. So thirsty...
When Rarity collapses under her mountain of orders, only one pony can offer her help. Fluttershy, however, has problems that are just as dire. Perhaps they could help each other out . . .