Washington, Nov 10 : A pregnant reality TV star, who dated Mel Gibson briefly during the summer, has been telling her friends that the actor is the father of her unborn baby.

Mother-to-be Laura Bellizzi and Gibson both denied the claim when contacted for comment, and a source close to the ‘Braveheart’ star insists that it’s “physically impossible” for the 55-year-old actor to have fathered the child.

However, a close insider says that Bellizzi has confided to friends that the actor is the baby daddy, but does not want the news to go public.

“Laura’s being as secretive as she can be about it,” Radar Online quoted an insider as telling Star Magazine.

“But she’s really showing now, and people are beginning to ask the question: ‘Who’s the daddy?’” the source added. (ANI)