When reports surfaced that Khloe Kardashian may not be a Kardashian, it was only a matter of time before the outspoken sibbling slam the claims.

On her twitter page, Khloe wrote, ”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)…” 

In an interview with Star Magazine, Ellen Kardashian, Robert Kardashian wife after Kris Jenner, says that Robert confessed and confided in her that Khloe Kardashian wasn’t his biological child before his death in 2003.

“He just kind of looked at me and said [it] like it was a matter of fact. He said, ‘Well, you know that Khloe’s not really a Kardashian, don’t you?’ And I said…’OK,’ and that was it,” Ellen revealed to the tabloid. “Robert did question the fact that Khloe was his,” Ellen said. “Any normal man would if they knew their wife had cheated on him.”

Momager Kris Jenner recently confessed to having an affair during her marriage to Rob Kardashian in her new book.