A representative for Mel Gibson denied claims that the actor fathered a baby with reality-show star Laura Bellizzi, as The Star reported Thursday. The rumor, his representative insisted in a statement that appeared on the Daily Mail's Web site, was complete and utter rubbish, 100 percent untrue.

Bellizzi also denied being pregnant with Gibson's child, though a relative of hers claimed she's having the baby of an A-lister.

Jan Patricio, Bellizzi's father, told RadarOnline that although Gibson's a friend of hers, he's more than a bit skeptical about the idea of his grandchild having a famous dad.

I know my daughter and I know she's pregnant. ... Mel Gibson being the father though, that's not true, he said.

In fact, one source claimed it's physically impossible for Gibson to have been the father.

But another source said Bellizzi's just putting everyone on, and actually is pregnant with Gibson's baby. Laura's being as secretive as she can be about it, the source said. But she's really showing now, and people are beginning to ask the question: 'Who's the daddy?'

As for the fling Gibson supposedly had with Bellizzi, still another source alleged that the former Secrets of Aspen contestant's social circle played a part in making it happen.

Laura and Mel met through some mutual friends in Malibu, and the chemistry was instant, the source said.