Gibson Confirms Mistress Is Pregnant; Jokes To Leno "I Guess I'm Octo-Mel!"

For the first time, Mel Gibson has confirmed that he is expecting a child with his new girlfriend, Russian singer/model Oksana Grigorieva.     

Appearing on The Tonight Show with Jay Leno Monday, Gibson joked,  "I guess I'm Octo-Mel,"  about his forthcoming child, which will be his eighth.

The Oscar winner looked frazzled and started to perspire when certain topics came into play.

Gibson told Leno he had been separated three years from his wife of 28 years, Robyn.

"These things happen," The Passion  Of Christ director, 53, said. "It's unfortunate, it's sad, but you know she is an admirable woman -- we still got kids together. We're friends ... when it's all said and done, I did a pretty good hatchet job on my marriage myself. I'm to blame. If you're inclined to judge, put it here."

RadarOnline.com was the first to bring you the exclusive photos of the couple's beach getaway that included some of his kids -- the first evidence of their then-secret relationship.