Credit: Bennett Raglin/WireImage

Kim Kardashian is just itching to be a bad, bad girl!

For Saturday night's Midori Green Halloween bash at LAVO in NYC, the reality star, 31, went all out as Poison Ivy, the sexy, poisonous Batman villain made famous by Uma Thurman in 1997's Batman & Robin.

The raven-haired mogul donned a fire-red wig, super-high heels and an all-green, cleavage-enhancing mini-dress dripping with green flora.

Why Poison Ivy?

"The party is obviously with Midori," the liquor's spokeswoman told Us Weekly. "So I wanted to wear something green and I thought, what really is there to wear green? There's Tinkerbell or a mermaid -- and I wanted to be Poison Ivy. I like the red hair idea.

The naughty, dangerous aspects of Poison Ivy definitely appealed to her, too. "For sure!" she told Us.

Tell Us: Do you like Kim's Halloween look this year?