He's writing a $10m tell-all! Lamar Odom admits he's working on book as it's claimed he will spill on Kim Kardashian's 'secret splits' from Kanye

Lamar Odom is writing a new book.

The former basketball great - who is divorced from Khloe Kardashian - told InTouch Weekly the news last week. 'I have a book coming out, an autobiography about my life. [The book will cover] everything. Everything. It’s a free-for-all. [I’ll be] open about everything that’s been going on in my life, about the past.'

And sources tell the publication he will reveal plenty of Kardashian family secrets about drugs, surgery as well as secret splits between Kim and Kanye West.

He said it: Lamar Odom told InTouch Weekly: 'I have a book coming out, an autobiography about my life. [The book will cover] everything. Everything. It’s a free-for-all.' Seen on July 11

He said it: Lamar Odom told InTouch Weekly: 'I have a book coming out, an autobiography about my life. [The book will cover] everything. Everything. It’s a free-for-all.' Seen on July 11

He goes there? A source told the publication the former NBA star will reveal Kim Kardashian and Kanye West, seen here in February, have had many separations

He goes there? A source told the publication the former NBA star will reveal Kim Kardashian and Kanye West, seen here in February, have had many separations

'Lamar is going to include never-before-told secrets about cheating, sex, and drugs, the booze, the pills, the cocaine, all of it,' said a source.

'Lamar has nothing left to lose,' added the friend.

It was added the former NBA star could earn $10 million for his tell-all.

His ex: The New York native was married to Khloe Kardashian for several years; here they are seen months after his overdose in February 2016

His ex: The New York native was married to Khloe Kardashian for several years; here they are seen months after his overdose in February 2016

Scary: 'Lamar is going to include never-before-told secrets about cheating, sex, and drugs, the booze, the pills, the cocaine, all of it,' said a source; seen in February 2016

Scary: 'Lamar is going to include never-before-told secrets about cheating, sex, and drugs, the booze, the pills, the cocaine, all of it,' said a source; seen in February 2016

'Lamar has been close to the Kardashian family through all of their craziest drama, and he is their biggest threat when it comes to spilling their dirtiest secrets,' said a source.

It was not revealed whether he still has a Non Disclosure Agreement from working with E! (he appeared on Keeping Up With The Kardashians as well as the spinoff Khloe & Lamar) or his divorce from the 33-year-old beauty.

'This book will go down in history,' it was added.

Can he legally trash them? It was not revealed whether he still has a Non Disclosure Agreement from working with E! (he appeared on Keeping Up With The Kardashians as well as the spinoff Khloe & Lamar) or his divorce from the 33-year-old beauty; seen 2009

Can he legally trash them? It was not revealed whether he still has a Non Disclosure Agreement from working with E! (he appeared on Keeping Up With The Kardashians as well as the spinoff Khloe & Lamar) or his divorce from the 33-year-old beauty; seen 2009

And Odom will certainly cover Kim's 'dirty details,' like how she uses men for fame.

She has been with Reggie Bush, Kris Humphries and is now married to Kanye West with whom she has two children: North, aged four, and Saint, aged one.

And the insider claims that Lamar will reveal that Kim and Kanye have had many secret splits: 'Lamar knows all about their many separations, He can give details of their arguments, the name-calling and the accusations they've hurled at each other.'

And he will paint Kim, 36, as a money grubber, it has been alleged, focusing on how she takes money for anything like attending the Vienna Ball in 2014; she was allegedly paid $500,000 for the trip.

It is also believed that publishers wants Lamar to write about who Khloe's real father is.

It has for years been claimed that her dad is not Robert Kardashian but rather OJ Simpson.

He knows: Lamar was most close to Rob Kardashian, who lived with Khloe and Lamar for years. He could talk about the black sheep's marijuana and sleeping pill dependence, it was claimed; seen in 2012

He knows: Lamar was most close to Rob Kardashian, who lived with Khloe and Lamar for years. He could talk about the black sheep's marijuana and sleeping pill dependence, it was claimed; seen in 2012

It was not made clear how he would actually know if OJ is her real father and the source hints that Khloe doesn't even know the truth. 

Then there is the surgery. The source said that he will reveal whether Khloe and Kim have surgically enhanced bottoms.

'He will say who had what done and when,' said the source.

Is her bottom real? Then there is the surgery. The source said that he will reveal whether Khloe and Kim have surgically enhanced bottoms. 'He will say who had what done and when,' said the source

Is her bottom real? Then there is the surgery. The source said that he will reveal whether Khloe and Kim have surgically enhanced bottoms. 'He will say who had what done and when,' said the source

And he will touch on Kylie Jenner's personal life as well, like how she 'hangs out with people who carry guns and did drugs.'

Caitlyn will be covered as well, with the insider saying Lamar knows Bruce Jenner - who now goes by Caitlyn - cross dressed and Kris knew about it.

And it was claimed that Kris Jenner has hit on Lamar as well as other men in the family. 'It will knock your socks off,' says the source.

Lamar was most close to Rob Kardashian, who lived with Khloe and Lamar for years.

He could talk about the black sheep's marijuana and sleeping pill dependence, it was claimed.

The source added that the book is just part of his comeback. He is also interested in a docuseries.

Her new beau: Khloe is currently dating Tristan Thompson of the Cleveland Cavaliers; seen last week in Calabasas, California

Her new beau: Khloe is currently dating Tristan Thompson of the Cleveland Cavaliers; seen last week in Calabasas, California

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