The father of Kris Jenner’s third daughter Khloe Kardashian is still a question. The family which is of Armenian descent has produced Kim, Kourtney and Rob with the similar Armenian features while Khloe who has a different skin tone, hair colour and facial features stands as the odd one out.

There are speculations that Kris had an affair with some other man who might have produced her. But who this man is? O.J. Simpson probably? Ian Halperin’s upcoming book Kardashian Dynasty:The Controversial Rise of America’s Royal Family delves into it. He found the distinctive features of the 31-year-old Kardashian similar to that of O.J. Simpsons’ daughters.

(Also read: Khloe Kardashian Reveals Shocking Details About Her Father? ‘Kris Jenner’s Affair Destroyed Him’)

“When I heard the rumors, I immediately dismissed them out of hand. While it’s true that Khloe looked nothing like her sisters, I thought she was too light-skinned to have been fathered by O.J. — not withstanding the fact that he is a light-skinned African American with significant white blood in his ancestry. Still, [Khloé’s sisters] Kourtney and Kim[Kardashian] were darker than she was. They’d be more likely candidates, I assumed.Then I saw a photo of O.J.’s daughter Sydney when she was young and a photo of Khloé at a similar age. They were spitting images of each other. Maybe there’s something to this after all, I thought,” Halperin told InTouch Weekly.

In Kocktails with Khloe, the Kardashian sister revealed that she found this problem “overwhelming.” Ashley, who had been married to Rob, also raised similar suspicions. “Robert said, ‘Oh my God, he’s so black, he has curly hair, so does Khloe. Oh my God, you think it’s him?’” Ashley said Robert confided her secret to her. She had been devastated over the news. The reason is because her father Robert Kardashian had died. He died on Sept. 30,2003. He is not present to defend himself in front of others. Khloe said, ” I was like you can talk about me and my sisters all you f**king want. Do not talk about my dad,” Radar Online reports.