One of O. J. Simpson’s prison guards has spilled some hot tea on speculation that the former NFL star is reality star Khloe Kardashian’s biological father.

Rumors that Simpson fathered Kardashian, rather than her dad Rob Kardashian, Sr. have been swirling for months as her mother, Kris Jenner, has been accused of having an affair with Simpson.

Jeffrey Felix, who works at Lovelock prison in Nevada, dished on the ordeal in a Robert Kardashian documentary called Kardashian: The Man Who Saved OJ Simpson, The Daily Mail reported earlier this month. The athlete is currently serving a 33-year sentence there for robbery.

Felix has detailed a conversation he overheard between Simpson and Kardashian in which Kardashian was extremely upset.

“One day I could hear Khloe screaming in the phone. He said she was upset because she wanted him to take a paternity test, because the media is all over him, to see if OJ is her actual dad.”

Interestingly enough, Simpson refused to take the test.

Felix recalled, “A few minutes after that phone call he pulled me up and asked me what I would do and I told the Juice to take it, and he said ‘no.’”

When asked why, Simpson responded, “It’s a family matter, it’s none of the public’s business.”

While Jenner has confessed that she did have an affair when she was married to Robert, she has denied that the other man was Simpson.

But a woman named Ellen Pierson, who tied the knot with Robert just weeks before he passed away, said that he confessed Khloe was not his biological child. His second wife, Jan Ashley, has also made similar claims.

Felix also said that Kardashian is Simpson’s “favorite” and that Kardashian and Simpson communicate with one another despite Jenner’s thoughts that Simpson is the one behind the murder of her best friend and Simpson’s ex-wife, Nicole Brown.