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The O.G. of the OC wants Braunwyn Windham-Burke off of “The Real Housewives of Orange County” after a season of debauchery.

Vicki Gunvalson, who was reduced to a “friend” role for the current 14th Season, sat down for the upcoming third part of the reunion and demanded that Windham-Burke change her behavior on the show.

“I don’t like the kissing. I don’t like the nakedness. I’m sorry. I don’t. I think it’s disrespectful,” she said in a preview clip of Thursday’s episode exclusively released to Page Six, referencing Windham-Burke’s steamy makeout with co-star Tamra Judge.

But Windham-Burke, 42, argued, “… Just because I choose to kiss women doesn’t make me classless.”

“Do it off camera,” Gunvalson, 57, yelled. “Fifteen years, I started this show. We don’t do that. Turn it down, Braunwyn. Turn it down!”

Gunvalson’s former friend Kelly Dodd chimed in, “Well you should say the same thing to Tamra.” The rest of the cast began to argue among each other and Judge shook her head “no.”

“Turn it down! Turn it down!” Gunvalson exclaimed to a stunned Windham-Burke, who fired back, “You’re not the boss of me!”

“You are brand-new on this show,” Gunvalson screamed. “We have kids watching this!”

Judge then joked, “Wait till [the] second season to make out with a girl!”

Meanwhile, host Andy Cohen was confused as to why kids would be watching the dramatic reality show, as the cast started to defend Windham-Burke — who is married to Sean Burke and has seven children with him.

“This is who I am,” Windham-Burke said. “I didn’t come on the show to give you the best version of me. I came on the show to be me. And you don’t get to decide it.”

Gunvalson, digging into Windham-Burke for taking off her clothes on the air, finally said: “Get off the show. Let’s elevate. I lost two clients last month because of these shenanigans. … They said it doesn’t meet their moral compass.”

Cohen then reminded Gunvalson, “Well, we’ve seen you flash your t–s.”

“I didn’t do it to the camera!” Gunvalson exclaimed as a flashback clip from the cast’s trip to Ireland in Season 11 showed her flashing Heather Dubrow’s husband, Terry Dubrow, via FaceTime.

Cohen continued, “Vicki, you demonstrated how to give a b—-b on the show.”

“It was [a] bachelorette party!” Gunvalson defended herself as a clip from 2013 played of her suggestively sucking on a lollipop.

Other co-stars then brought up additional Gunvalson mishaps, with Gina Kirschenheiter chiming in, “You’ve gotten so wasted you’ve pissed beds,” and Emily Simpson adding, “Vicki, you laid on the bar in Key West and drank out of the tap.”

“I was fully clothed!” Gunvalson yelled back. “And it was hilarious! You don’t have fun?”

Despite the on-screen drama, Windham-Burke recently told us, “I left the reunion on good terms with all my castmates.”