Khloe Kardashian has been in the center of incessant allegations that Robert Kardashian is not her biological father. Now, O.J. Simpson's manager Norman Pardo has come forward reportedly claiming that the jailed former NFL star could be her real father.

The subject of her father's parentage has always been on the "Keeping Up with the Kardashians" reality star's mind. For instance, in one of the episodes back in 2009, Khloe herself questioned if she was adopted, and wanted to prove that she was not adopted so she tested the maternity of her mother Kris Jenner.

Moreover, two of Robert Kardashian's ex-wives Jan Ashley and Ellen Pierson previously claimed that the lawyer told them Khloe was not his real daughter last year, which Khloe Kardashian responded to the claim on Twitter:

"The audacity you have to mention my father's name like this! Should be ashamed of urself! I let a lot of things slide but this one is really low... YOU ARE DISGUSTING! (yes you know who YOU are)."

"It's all going to come out sooner or later. Khloe could be O.J.'s kid," Pardo delivers the shocking news. "Whenever I bring it up, he giggles."

While Jenner has openly admitted cheating on her former husband, she has always strongly denied any speculation that Robert was not Khloe's father. "I have never heard such crap in my life," she said back in 2012. "I was there, right. I gave birth, I know who the dad was. Everything's good. We're all good. It's the family joke because Khloe was blond and not dark-haired. People just... get a life."

O.J. Simpson, who infamously acquitted of the murders of his ex-wife Nicole Brown and Ron Goldman, has never denied the rumor that he and Jenner had an affair, wherein she became pregnant with Khloe. Kris Jenner and her then-husband Robert Kardashian were very close to the Simpsons.

"They all took their vacations together. There was a lot of partying going on back then," Pardo admits. "Kris cheated on Robert - she was known for having a good time."

Khloe Kardashian also served as a member of O.J. Simpson's so-called "Dream Team" as his attorney in the famous 1995 murder trial.

Simpson, who now is considered Kardashian's potential father, is currently serving a 9-to 33-year sentence in a Nevada prison for kidnapping and armed robbery. The former professional player is pending trial in December and if he is freed, his manager alleged that he plans to reveal more in-depth details about his relationship with the Kardashians.