She’s a ‘Slave’ For Her! Nicole Richie Gets Down and Dirty for Britney Spears

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Nicole Richie let her freak flag fly at Britney Spears’ Las Vegas show last night. The pint-sized fashion designer joined Brit on stage and happily got on all fours for the “Work B*tch” singer.

Nicole, who has shown her love for Brit in the past, shared some fun photos from her impromptu guest appearance.

Britney also shared her appreciation for the 32-year old mom of two and tweeted this following the show.

Check out the on-stage antics in the video above.