It looks like things are about to get quite nasty in the Bravolebrity world. There's a new report that suggests Bethenny Frankel has been mean-girling Kelly Bensimon and her family for years and that the former model is ready to tell all and expose her former co-stars' dirty little secrets to the world.

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According to Naughty Gossip on Wednesday, Frankel was allegedly engaged in a "smear campaign" against Bensimon and her two teenage daughters. The site says that Frankel would deliberately spread false rumors about Bensimon to the media while also taunting her family at the same time.

A source told the site, "Bethenny is the smartest housewife ever. She knows all the media tricks and has very close friendships with a lot of gossip columnists. During the early seasons, she supported a hate blog against another cast member. And now Kelly is going to expose all."

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Bensimon herself supposedly confirmed the rumors by saying, "My girls endured so much after @bethenny went on her smear campaign for the last 5 years. She owes them an apology."

Bensimon didn't specify exactly what Frankel said or how she directly affected her daughters. So far the Skinnygirl mogul has not made any comments about the report.

Keep up with Enstars for all the latest news on Bethenny Frankel and all of your favorite Housewives.