Jamie, 34, from Dundee, has had 15 children by 13 different women. He is on benefits and does not pay maintenance for any of them.
Mr Cumming's 19-year-old ex-girlfriend gave birth to his latest child, a son, two weeks ago. His current girlfriend, also 19, is due to give birth to another boy. A girl of 17 is understood to be expecting his 17th child in the New Year.
His mother, Lorraine, 55, has said: "He needs to take some responsibility. He's an embarrassment and I'm having nothing to do with him."
He first told his mother and his father Harry he was going to become a dad, aged just 17.
His girlfriend Kelly gave birth to a little girl in February 1995 and everyone believed the couple would go on to get married.
But once the baby was born, Jamie started a relationship with Kelly's cousin. The couple had IVF treatment through the NHS but could not conceive, despite Jamie fathering a child with another woman in 1997.
"Around the same time in 1997, Jamie got another girl pregnant - Kelly's cousin's pal," said his exasperated mum, going on to reveal that he then had a baby in November 1998 after a one-night stand with a neighbour's daughter, then, three years later in July 2001, had another.
Just over a year passed before his sixth child, a boy, arrived, followed a few months later by a seventh son. In 2002 another woman gave birth to his eighth child, another boy, and in 2004, he started a new relationship which has produced three children. By December 2007 Jamie's 10th child had arrived, and five months later his 11th son was born.
Jamie also fathered a child with an Australian woman who took their son back to Australia after the birth.
Lorraine regularly keeps in contact with her 14 grandchildren and often meets with their maternal grandparents but she feels humiliated because her son is refusing to raise or support his own children.
She says he often spends Christmas Day flitting between each of the women and will sometimes spend his money buying lavish gifts rather than buying food and clothes.
What an appalling story! How little self-respect must these young women have to get pregnant by him, mistaking his dubious charms for real love and support?