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Kris Humphries has filed for a legal separation to have his marriage to Kim Kardashian annulled.
A rep for Humphries confirmed to ET that the court papers have been filed in response to Kardashian's divorce filing on October 1.
Unlike a divorce, filing for a legal separation and annulment can result in the marriage being declared invalid as if it had never happened.
Kardashian cited irreconcilable differences as the reason she filed for divorce from Humphries after just 72 days following a lavish star-studded wedding in August.