Sister Wives stars Christine and Janelle Brown trash talk ex Kody and his wife Robyn at Nashville ba

SISTER Wives stars Christine and Janelle Brown have been caught trash talking their mutual ex Kody and his wife Robyn, The U.S. Sun can exclusively reveal.

Between attending the Plexus convention, dressing up in cowgirl attire, and partying in Nashville, Christine and Janelle made time for a gossip session about Kody.

The two Sister Wives stars, along with Christine's fiancé David Woolley and Janelle's daughter Maddie, were spotted at a low-key Nashville bar on Sunday, June 18, which also happened to be Father's Day.

Instead of attending the private Maren Morris concert that was held for attendees of the Plexus four-day event, the group of four preferred to remain inside and rant about things they were bothered by in their lives, per an eyewitness.

"They were definitely talking smack about Kody and the other wives.

"They were having a deep and animated conversation that lasted over three hours," the eyewitness told The U.S. Sun.

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"At one point, Janelle left because it was getting late, but the three of them gossiped until 11 p.m."

The eyewitness added, "Christine seemed very heated while talking about Kody. She mentioned he was stressing her out.

"Since Maddie was at their table, Christine referred to Kody as 'Dad.'

"Everyone brought up 'Meri' and 'Robyn' as well and it wasn't in a positive light. You can tell they were all aggravated."

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The insider continued: "David even made a comment about meeting one of the sister wives - Meri or Robyn - 'twice' and she would 'give him weird looks.'"

One hot topic, per the insider, was that the hit TLC show was going in a different direction.

"Maddie, I believe, was the one who said the show became 'volatile.'

"She also claimed Kody 'cut them off,'" the insider noted.

David, who has yet to make an appearance on the show, appeared to feel just as angered, as he was heard shouting, "Stop playing around!"

SNUBBING KODY

Despite Kody and Christine's daughters Ysabel and Gwendlyn sharing heartfelt Father's Day posts, the mom of six snubbed her ex.

Instead, she posted a series of photos of David, 59, with her and her other kids, including 13-year-old daughter Truely.

She captioned the pics: "Happy Father’s Day @david__woolley I’ve watched how loving, compassionate and present you are with your children and I love how you’ve shown that to my children as well.

"You’re truly showing up, which is what is most important."

Fellow sisters Meri, 52, and Janelle, 54, also failed to post messages on social media following their splits.

While at the Nashville bar, Christine, 51, gushed about David, per the insider, and said he's "so supportive" of her.

The Plexus brand ambassador even joked that she's going to have him help her with her weight loss business.

NOT A FAN

The U.S. Sun previously reported Kody was concerned over Truely living with her mom and her fiancé ahead of tying the knot.

A family insider claimed: "It has been brought up several times by Kody that he doesn't think it's appropriate for his daughter to be living in an unwed household.

"There have been conversations about how he's uncomfortable with the fact alone that Christine and her fiancé are living together and not married."

The source added that given the reality star's past polygamous lifestyle, there can also be pressure for her to "get married quickly."

The U.S. Sun first broke the news that Christine and David have a summer wedding date planned after getting engaged in April.

Even though the exes relationship is rocky behind the scenes, an insider revealed Kody and Christine are still in touch to talk about their youngest daughter.

"Kody and Christine are still in communication. He always calls Christine to speak to his daughter," a source shared.

"He misses her and tries to see her often, despite it seeming like she spends all her time in Utah with her mom."

LIVING THEIR BEST LIVES

All drama aside, Christine and Janelle have been living it up in Nashville this past weekend.

The duo, along with Janelle's 27-year-old daughter Maddie, have been attending meetings for their favorite "pink drink."

Once sessions ended, the Sister Wives were free to enjoy a night out in town.

The U.S. Sun obtained exclusive photos of Christine and her fiancé having a wild time at Coyote Ugly Saloon on June 16.

A source spilled: "The bar was wild! Everyone there appeared to be in their 20s-30s.

"It did not seem like a place Christine would even step foot in!

"There were girls dancing on the bar and a lot of inappropriate things going on inside."

Meanwhile, Janelle attended the Grand Ole Opry.

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She captioned footage from the concert inside: "This will be a must do any time I’m in town from now on! So enjoyable.

"Rory Feek and his daughter Indy - Not a dry eye in the place. The funniest musical comedy act I’ve seen in ages."

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