The Southern Charm star, 33, appeared alongside fellow cast member Craig Conover on Watch What Happens Live with Andy Cohen on Thursday and said that the trio, who recently partied together, became friends when Cavallari "slid into Craig's DMs."
"Honestly, she slid into Craig's DMs and was like, 'I'm coming into town,' so we all went to dinner and we all just hit it off," he said, responding to a fan who asked about their friendship and whether there was "something else going on there."
"We just all get along so, so well," Kroll added.
Tommaso Boddi/WireImage; Mireya Acierto/WireImage; Alberto E. Rodriguez/Getty From left: Austen Kroll, Kristen Cavallari and Craig Conover
"Kristin is out of a 10-year long relationship — she's not looking for anything," he said, coyly adding, "She is certainly just living her best life."
Kroll, who recently split from Southern Charm's Madison LeCroy, also said that he's not looking to be involved with someone else who has kids. (LeCroy shares 8-year-old son Hudson with her ex-husband.)
"I'm out of one who had one kid — there's no reason to jump into something with someone who has three kids, I can promise you that," he said of the former Laguna Beach star, who is mom to daughter Saylor James, 5, and sons Jaxon Wyatt, 6, and Camden Jack, 8, with Cutler.
RELATED VIDEO: Kristin Cavallari Sexily Dances While Partying with Southern Charm's Austen Kroll and Craig Conover
Kristin Cavallari Sexily Dances While Partying with Southern Charm's Austen Kroll & Craig Conover
At one point during the evening, Kristin Cavallari was dancing on top of Craig Conover's shoulders
Cavallari, 33, also responded to the speculation earlier this week after she, Kroll and Conover made headlines while documenting their night in Nashville over the weekend. (In one video, Kroll lifted Cavallari onto his shoulders and danced around.)
On Monday, Cavallari shared a clip of herself rolling her eyes on her Instagram Story. "I didn't realize I wasn't allowed to have FRIENDS that are guys," she captioned the post.
"He wishes," Dye, 37, wrote on Twitter alongside a winking face emoji.