BRUCE Willis has become a father for the fourth time.  The 57-year-old actor - who has daughters Rumer, 23, Scout, 20, and 18-year-old Tallulah with ex-wife Demi Moore - and spouse Emma Heming Willis are ‘’overjoyed’’ at the arrival of Mabel Ray Willis, who was born on late Sunday, his representative has confirmed.  Both Emma and Mabel Ray - who weighed in at 9lb 1oz - are said to be doing well. Bruce had previously claimed he was indifferent to having children with Emma - who he married in March 2009 - as the only thing that mattered was being with her. He said: ‘’I’d like to have a thousand more children, or zero more children. It doesn’t matter.                    –ES