WORLDWIDE EXCLUSIVE: Mel Gibson sat his children down and announced that his Russian girlfriend is pregnant with his love child, a Gibson family friend told The ENQUIRER.

The kids were stunned by the news, and the pregnancy bombshell has set the stage for a bitter battle over the Braveheart star’s billion-dollar fortune, sources reveal.

The Oscar winner’s two oldest boys – 26-year-old twins Edward and Christian – will hire an attorney to protect their trust funds, and insiders expect his estranged wife Robyn will seek more than half of his assets.

At the center of the battle is Mel’s girlfriend Oksana Grigorieva, 39, who is about three months pregnant, according to the family friend.

"In late April, Mel gathered his children at the family home in Malibu and broke the news that Oksana is pregnant, and he expects them to accept the baby as a new sibling," the friend told The ENQUIRER.

"They are quite upset," the source revealed. "Even though Mel assured them the pregnancy was unplanned, they’re furious with him and say they’re going to take steps to protect their inheritance, which they feel is in jeopardy".

FOR THE FULL STORY you won’t find anywhere else
get The ENQUIRER on sale now!