Australian sperm donor Ken Allen discovers he is a father to 11 children he never knew he had

An Australian man who discovered he was a father to 11 children he never knew he had is now on a mission to track them down.

Ken Allen donated sperm many years ago and didn’t look back.

He was shocked when he received a phone call telling him he had 11 kids living across Australia.

‘Eleven, eleven, eleven, you’ve got to be kidding me,’ Mr Allen told Channel 7’s Sunday Night program. 

Mr Allen said he immediately knew he needed to track them down.

He has since met two daughters and a son.

Mr Allen’s children were also overwhelmed to meet the father they never knew.

‘This is a big moment for me in my life,’ one teenage boy said.

Another one of Mr Allen’s children said she gained more than she bargained for.

‘I’d gone on this search looking for my biological father but I’ve found so much more,’ she said. 

‘I’d gone on this search looking for my biological father but I’ve found so much more,’ one of Mr Allen’s daughters (pictured) said 

Mr Allen and his children are planning to travel across the country to meet at a family reunion (family pictured) 

Mr Allen and his children are planning to travel across the country to meet at a family reunion.

He said there were seven more sons he still needed to meet.

Mr Allen said the reunion was incredibly important because there was something they needed to be aware of.

Mr Allen’s story will be featured on Channel Seven’s Sunday Night program at 7pm.