She definitely looks different than her other sisters. Khloe Kardashian has long been plagued with rumors that Robert Kardashian, Kris Jenner's deceased ex-husband, is not actually her father.
People have tossed around different names of men Kris Jenner could have cheated on her husband with, but the one that has stuck the most is O.J. Simpson.
Simpson and his dead ex-wife Nicole were friends with Jenner and Kardashian, while both couples were still married. With Khloe's much bigger build than her sisters, Kim and Kourtney (Khloe is 9 inches taller than Kourtney), people have pointed to Kris' close relationship with O.J. as proof of parentage.
But O.J. took time on Father's Day to explicitly deny any such lingering rumors. "Bob Kardashian, he was like a brother to me," Simpson, 71, said. "He was a great guy. He met and married Kris (Jenner) and they really had a terrific time together when they were together, unfortunately that ended."
"But never – and I want to stress never – in any way, shape, or form have I ever had any interest in Kris – romantically, or sexually – and I never got any indication that she had any interest in me," he said, in one of his first posts to Twitter, which he recently joined. "So all of these stories are just bogus, bad, tasteless."
"Khloé, like all the girls, I'm very proud of, just like I know Bob would be, if he was here, but the simple facts of the matter is, she's not mine," Simpson added.
Khloe had separately joked on an episode of the family's reality show that she was relieved her DNA ancestry results showed she was almost half Middle Eastern, a reference to her father's Armenian heritage.
"You are my sister!" exclaimed Kourtney. "Oh, my God, we are sisters," Khloé said jokingly rolling her eyes. "Thank God, if you weren't Middle Eastern at all, we would be in big trouble," Kourtney retorted.
What do you think of the rumors about Khloe having a different dad? Do you think that she looks too different from her other sisters to be a full sibling instead of a half? Let us know what you think!