Mommy Just Wants To pAArty!

Unfitney reigned supreme on Halloween!

The mother of two sure has been hitting the clubs hard lately. Wednesday night was no exception.

Brit Brit started the evening by hitting up the Green Door in Hollywood. But her night was long and only began there.

The frequent and habitual drug user, dressed as a diseased kitty kat, then hit up some private house parties.

As she is prone to do, Spears had an outfit change somewhere along the line. She ended up the evening dressed like a fucked up Spring Breaker in Cancun.

Meow!

[Images via WENN.]