Peter Andre wants to write a book about frogs for his ex-wife Katie Price's son Harvey.

The pop star-turned-author has recently written two children's tomes 'A New Day at School' and 'The Happy Birthday Party' but nine-year-old Harvey, who Peter has been a stepfather to, is so obsessed with the amphibian reptiles that he hopes to write the youngster his own book based on the creatures.

Peter said: "Harvey would love his own book, he is obsessed with frogs, absolutely obsessed with them so I'm very grateful I get the chance to do this."

The children's books are based on the adventures of Peter and his siblings Michael and Debbie and although the 'Mysterious Girl' hitmaker has his own children - son Junior, six, and daughter Princess Tiaamii, three, with Katie - he was reluctant to base the stories on them and Harvey because it would be too "predictable".

During an appearance on UK TV show 'This Morning', he explained: "I thought it would be too predictable to put Junior, Princess Tiaamii and Harvey in the books so I thought why not put me and my sister Debbie and brother Michael and then I could incorporate my children into them."