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Vicki Gunvalson — whose “Real Housewives of Orange County” tagline once dubbed her the “O.G. of the O.C.” — could be leaving Bravo after 11 years.

“‘The Real Housewives of Orange County‘ reunion was extremely emotional because Vicki warned the girls that she is stepping down next season,” an insider told Page Six Tuesday.

“There have been quiet castings for new women,” the insider added. “The ‘Housewives’ franchise is thinking of new girls for the show and is asking around for new women for the next season. Vicki threatened to not come back at all if there’s a new cast.”

The “RHOC” Season 12 finale aired in November and ended with Gunvalson, 55, reconciling with frenemies Tamra Judge, 50, and soon-to-be divorcée Shannon Beador, 53. Gunvalson apologized for repeating a rumor that Judge’s husband is gay and claiming that Beador’s husband “beat the s–t” out of her, while Judge agreed to stop discussing Gunvalson’s ex-boyfriend’s cancer-fraud scheme.

“Shannon, I want to hug you too because I’m sorry,” Gunvalson said on the reunion. “I really am sorry. I’ve asked for forgiveness and I’m sorry. I feel for you. I do, I’ve literally been through [divorce] twice. It sucks. We gotta build each other up not tear each other down. We all are good people.”

The insider also told us Judge “is also thinking of not coming back.” The CUT Fitness owner revealed at the reunion that she hasn’t spoken to her daughter Sidney since she posted photos from her high school graduation on social media, and she previously expressed her desire to reconcile with the private teenager on the show.

Judge’s rep had no comment.

A rep for Gunvalson did not get back to us. Bravo did not immediately return a request for comment.