Gambon Expecting Second Lovechild

The Harry Potter star married his wife, Lady Anne, when he was 22 and the pair has a 44-year-old son, Fergus.

But Gambon also acquired a mistress and in 2002 he moved out of his marital home in Kent, England.

The pair welcomed a son, Michael, in May last year (07) - and they are now expecting another baby.

A friend of the star tells Britain's The Sun. "Michael and Philippa are delighted that she's pregnant again, but he is very worried about what his wife thinks of all this.

"He says it will cause him a lot of hassle if it comes out, but his private arrangements are so complicated he can't really expect a smooth ride. He continues to see his wife and mistress, but is very secretive about both relationships. He may be getting on, but Michael is still a wizard with the ladies."

But Gambon's age was reportedly one of the reasons the couple decided to have another child.

The source adds, "Philippa wanted a brother or sister for little Michael because when he gets into his teens, it's possible Sir Michael might not be around. Philippa felt it important her son had a sibling. She's also in her forties, so this could be the last chance for more kids.

"Sir Michael's happy, but he's got a few more frown lines since telling his wife. She knows everything and seems to be taking it in her stride."