Khloe Kardashian Odom's mother Kris Jenner took to Good Morning America today to slam her husband's ex wife and widow for putting out the rumor that Khloe was not, in fact, a Kardashian.

Her appearance follows Odom's own reaction to the Star exclusive report, when the reality TV star took to Twitter to lash back at the women for their disgusting behavior.

'Khloe brought it up all the time.'

Jan Ashley and Ellen Kardashian, who married Robert Kardashian after he split from Kris Jenner, told Star Magazine that Khloe Kardashian Odom, who married basketball star Lamar Odom in 2009, was adopted into the family after mom Kris Jenner had an affair.

According to Ashley, the late Kardashian was matter of fact about the revelation, and claimed he took Khloe in as his own once she was born. But Khloe was always uncertain whether Robert Kardashian was really her father.

Khloe brought it up all the time, Ellen Kardashian, the lawyer's third wife, said. She was tall, had a different shape, light hair, curly hair. Didn't look anything like the other three children.

Khloe Takes to Twitter: 'YOU ARE DISGUSTING'

According to Ellen Kardashian, Robert and Kris Jenner weren't even sleeping together when Khloe was conceived. Rather than look into her paternity, however, he decided to hush the scandal up.

He never would have considered a DNA test, Ellen Kardashian asserted. He loved her very much.

Khloe Kardashian Odom, however, wasn't feeling any love towards her father's widow, or his second wife. After the story broke, the reality TV star took to Twitter to vent her shock and outrage at what they were insinuating.

The audacity you have to mention my father's name like this! the infuriated reality star tweeted. Should be ashamed of urself!

I let a lot of things slide but this one is really low, she wrote in her second Twitter post. YOU ARE DISGUSTING (yes you know who YOU are).

Kris Jenner Responds

But Khloe's reaction was nothing compared to that of her mother Kris Jenner, who went on Good Morning America earlier today to dispel the rumors once and for all.

I have never heard such crap in my life, Jenner said.

I mean, I was there. I gave birth. I know who the dad was.

'It's a family joke... Get a life.'

Jenner, 56, has admitted to cheating on her ex-husband, but said rumors that Khloe isn't a Kardashian are nothing but a family joke that someone was dumb enough to take seriously.

We did a whole episode on stuff like this, because it's the family joke, Jenner said, referencing an episode of Keeping Up With The Kardashians that saw Jenner getting a DNA test to prove none of her children were adopted.

Jenner accepts the crazy rumors that swirl around her family (It's what you sign up for, she told GMA), including another part of the Star interview where Ellen Kardashian claimed Jenner's husband Bruce was a cross dresser.

But going after Khloe was crossing the line, and Jenner wasn't afraid to express that.

Maybe it makes somebody relevant for the day, she said. Get a life.

Ellen Kardashian Still Hoping For Reunion

Since Robert Kardashian's death in 2003, his widow has fallen on hard financial times. According to Radar Online, she filed for Chapter 7 bankruptcy in 2010, and lost her old home last October.

Ellen Kardashian, however, insists she has decided to come forward because she was hurt about being cut out of the Kardashian children's life once he died.

I was hurt for a while after Robert passed on when I didn't have any connection at all with the children, because that was a part of him, she told Star. I would have liked very much to have stayed in contact with them and I had no idea I wouldn't.

If she was hoping for a cozy Kardashian reunion however, she's sure to be disappointed. There are several ways to reconnect with the children of your late husband. Questioning their paternity? Not one of them.