Pamela Anderson has ended another brief marriage. Her two-month relationship with Rick Salomon was officially annulled according to documents filed in Superior Court.The documents listed fraud as the reason for the annulment but did not include further details. Salomon and Anderson were married Oct. 6 in Las Vegas then separated Dec. 13.Court papers showed that Salomon agreed to a filing by Anderson in late February requesting that the marriage should be voided. No spousal supported was included. Anderson was previously married to Motley Crue drummer Tommy Lee and rocker Kid Rock. Rock and Anderson each filed for divorce in 2006 after less than four months of marriage. Salomon, known for making a sex videotape with then-girlfriend Paris Hilton, was previously married to actress Shannen Doherty for nine months.