Kim Kardashian Dresses Up As Catwomen and Shows Off Third Halloween Costume, while Kanye dresses up as Batman. This year Kim K really went all out for Halloween, as she showed off yet another sexy costume while attending a bash at LIV nightclub in Miami. We knew Kim and Kanye were up to something, and would bring it in the form of a couples costume, and the pair didn’t disappoint by dressing up as Catwomen and Batman. Kim’s other family members decided to join the bat crew as Kourtney decided to dress up as Batgirl, and her boyfriend Scott Disick joined in by dressing as Riddler. Peep all of their costumes ( except Scott’s) below.