Kristin Cavallari in a Montana Boyz TikTok.Photo:montana.boyz/Tiktok

montana.boyz/Tiktok
Kristin Cavallariis not ashamed to be dating a younger man.
Just three days after theLaguna Beachalum, 37,went Instagram official with her new boyfriendMark Estes, she joined the 24-year-old and his friends in a TikTokvideoshared Friday on their joint account known as theMontana Boyz.
The Montana Boyz appear to welcome Cavallari into their crew as they all dance and lip-sync along toJason Aldean’s 2009 hit “She’s Country."
Kristin Cavallari and the Montana Boyz on TikTok.montana.boyz/Tiktok

Cavallari, dressed in jeans and a shirt that reads “This Ain’t My First Coors Rodeo”, is all smiles in the video and grooves along to the chorus of the country track. Just before the clip ends, Estes gives her a sweet hug from behind.
The Montana Boyz also left a cheeky caption: “Brother she’s country…”
A few hours after their video was posted, Cavallari sharedher own TikTokin which she responded to the criticism she’s received for dating a younger man.
“When they’re all up in arms that im dating a 24 year old. Andddd?” she captioned the video, which showed her mouthing the words to a clip that said, “So what are you gonna do about it?”
When another voice responds, “We’re reporting it,” Cavallari continues mouthing to the clip’s audio. “Are you gonna arrest me? Are you gonna give me a ticket?” she says before flashing a cheeky smile at the camera.
Cavallari’s first appearance on her influencer boyfriend’s joint TikTok comes shortly after she revealed that the two were dating on herInstagramon Tuesday.
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“He makes me happy 🤍” she captioned the shot, which Estes later shared on his Instagram Story with two hearts.
Kristin Cavallari and Mark Estes.Kristin Cavallari/ Instagram

Kristin Cavallari/ Instagram
Themother of threethen rolled her head back with a laugh before hopping into the former college football player’s arms. From there, Estes carried her toward the camera, his arm wrapped securely around her torso, and one hand at her lower back.
Shortly after the couple revealed that they were an item, a source told PEOPLE that they have been “dating longer than people think,” but “have kept it very private.”
“They’re serious enough now that they were ready to go public,” the source explained, mentioning that the two originally met on “social media.”
“They’re really happy together. He’s been so great to her and is just a really nice guy,” the insider added. “He’s not your typical 24 year old. She’s having a great time and is living her best life with him.”
source: people.com