Coco is used to showing off her body for all her fans on Twitter -- but last night, her parts made an unexpected appearance while walking the runway during Fashion Week!

The "Ice Loves Coco" star was a celebrity model for Richie Rich on Tuesday night, showing off her crazy curves in a number of tight ensembles.

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One of the outfits wasn't snug enough though -- because one of her breasts popped out when she hit the catwalk! She looked shocked...but somehow, we think she's O.K.

Kirstie Alley and New Kids on the Block star Jonathan Knight were the audience for the malfunction.

Richie Rich is no stranger to having celebs in his shows: Last year Jwoww and Johnny Weir showed their stuff in the designer's clothing.

Check out more Fashion Week pics above!

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