article_snippet.sent: Both children are believed to have been fathered by MacDonald .
article_snippet.sent: MacDonald refuses to use contraception and had fathered six children by the time MacDonald turned 20 - including two MacDonald claims were conceived on double-decker buses.
article_snippet.sent: MacDonald was just one of several feckless fathers to gain infamy after appearing in 40 Kids by 20 Women.
article_snippet.sent: MacDonald claims to have 40 children by 20 women - and says while MacDonald would not recognise many of MacDonald offspring in the street, MacDonald wants more.
highlights_snippet.sent: Jobless Keith MacDonald, 29, has fathered 15 children by 10 women .
  
highlights_snippet.sent: Macdonald, who appeared on the Jeremy Kyle show, meets the Jeremy Kyle conquests on buses - and claims two of the Jeremy Kyle children were conceived on the top deck .