CELEBRITY
09/12/2013 12:43 pm ET

Jillian Michaels Embarrassed Herself At A Malibu Triathlon, Says 'Biggest Loser' Co-Star

AP

Jillian Michaels didn't just SUCK ASS at the Malibu Triathlon -- she was an EMBARRASSMENT -- so says her former "Biggest Loser" co-star Cara Castronuova.

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