This is, at least, MORE interesting with the vampy lipstick.
The gown resembles something virginal that got stuck by lightning. Which is apt, given that her character on American Horror Story: Asylum was a nun who was possessed by the devil. Much like with the show, her body is trying to act like nothing is wrong, but her lipstick knows the truth, and wants to mess with your head. Whatever you do, resist giving her your ATM pin code.