Kim Kardashian showed off her sparkly booty dressed in a Wonder Woman costume last night.

The reality TV star opted for a revealing Halloween outfit that made the most of her famous derrière.

Kim squeezed into Wonder Woman's sexy blue knickers to treat the world to a glimpse of her gravity-defying rear,

Kim was accompanied by pal Brittny Gastineau, who chose a much more traditonally scary costume.

See Kim & Brittny go bump in Beverly Hills below