Khloe Kardashian Paternity Controversy Growing

The “Momager” continued, “Everything’s good. We’re all good -- don’t worry about it,” adding Khloe’s fair hair color to her sister’s dark hairdos have made for a long-running “family joke” regarding her paternity.

But it was far from a family joke, say both of Robert's ex wives, who personally observed Khloe talking about it for years and heard Robert talk about it directly.

Star spoke again to Ellen, who said that she had many conversations with Robert Kardashian about it – and that its not a question whether he said it or not – she heard it with her own ears! Despite the reality TV family’s denials, Ellen's made it very clear that Robert didn’t want to take a DNA test; and that despite the fact that Kris cheated on him, he loved Khloe very much, which is all that mattered to him.

In addition, Jan reconfirmed that Robert told her point blank that "Khloe is not mine" -- and told the same thing to ET Wednesday.

Both women said they observed Khloe going around saying she did not believe she was a Kardashian.

An irate Khloe took to Twitter Wednesday, saying, "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)."

Despite her outrage Wednesday, Khloe once made the issue a storyline on their TV show when she took a DNA test in 2009 on camera. (Interestingly, she only did it with her mom  -- and NOT her siblings!)

"Khloe is not his kid — he told me that after we got married," Jan, the woman who married Robert after Kris Jenner, revealed in this week’s Star. "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?'