Vicki Gunvalson and Shannon Beador have reportedly remained at odds throughout filming on The Real Housewives of Orange County season 11.

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According to a new report, Beador continues to bring up the scandal surrounding Brooke Ayers' allegedly fake cancer diagnosis, which many believe Gunvalson was lying about.

“Shannon is not going to let Vicki live this down and she is also not going to let her back out of it,” an on-set source revealed to Radar Online on Monday. “The two of them have been going at it and they have only taped together just a few times.”

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“Shannon and the other girls want Vicki to take a lie detector test to prove that she did not know that Brooks was lying about having cancer,” the source continued.

However, according to Gunvalson's past quotes, she had no reason to believe Ayers was lying about his diagnosis, which was why she remained supportive of him until their relationship came to an end after filming on season 10 came to an end.

“Vicki said, ‘absolutely not,” the source said of the lie detector test. “She was really insulted that they would even suggest that. She really wants everyone to just drop it so that they can all move onto someone else’s bulls**t, but that is not happening.”

A premiere date for The Real Housewives of Orange County season 11 has not yet been announced.

Tags: The Real Housewives of Orange County Bravo Reality TV shannon beador Vicki Gunvalson