Kevin Federline is sharing his true feelings about Sam Asghari .

The 47-year-old ex of Britney Spears and father of their two children is releasing a memoir called You Thought You Knew , and responded to Britney ‘s 31-year-old ex referring to him as a “professional father.”

It’ll “be the first book that’ll tell you how to be a professional father,” Sam said to TMZ of Kevin ‘s upcoming back back in August.

“I have a hard time even having any kind of respect for Sam because what type of man gets involved in a situation like the one he got himself into with her?” Kevin said in response in an interview with ET.

“When me and Britney were together, he was probably 10 or 12 years old, so he doesn’t understand where the roots of this thing are. I was with her before all

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