In the libel suit, obtained by Page Six, Thompson, 29, claims Alexander “is a wannabe social media influencer and pornographic model/performer who is so desperate to achieve her fifteen minutes of fame that she recently fabricated a false claim that NBA star/Cleveland Cavaliers center/power forward Thompson is the father of her nearly five-year-old son.”

The suit, by the Thompson’s attorney Marty Singer, contends that, while the results of Thompson’s recent DNA test conclusively determined Alexander’s child is not Thompson’s, “Alexander has persisted in publicly proclaiming that Thompson is her child’s father and she has maliciously accused Thompson of being a deadbeat dad, ‘neglecting’ and failing to take financial responsibility for the child since birth.

“To quote Michael Jackson,” Singer’s filing quips, “‘the kid is not [his] son.’”

Also at the heart of the suit is Alexander’s claim that Khloé Kardashian, 35, and Thompson somehow tampered with the results of the first paternity test. The filing includes plenty of shots at Alexander, including her apartment-rental history. Thompson is seeking damages and court costs.

On Friday, Alexander took to social media after Thompson and Kardashian sent her a cease and desist letter.

“I’m not hurting for no money loves. I want #truth,” she wrote.