Kim Kardashian and Kanye West dressed as a sailor and mermaid duo for Halloween earlier this week, and last night partied at LIV nightclub in Miami dressed as Gotham City's finest, Batman and Catwoman.

Kim's older sister Kourtney dressed up as a Batgirl and her fiance, Scott Disick, played Batman's sidekick, Robin. Kim's BFF Jonathan Cheban was, of course, the Joker. They all set out in a rented Batmobile to the event. 

"The whole crew has a theme," Kim tweeted on Wednesday evening. "Even cars to go with our theme!"

Kim posted photos of the crew throughout the night on her Instagram. Looks like they had fun.