It looks like now there is real-life relationship drama going on for another Kardashian.
Kristin Cavallari is discrediting a new story alleging she had an affair with Scott Disick, who has been in a committed relationship with Kourtney Kardashian since 2007. The 24-year-old MTV reality star even goes as far as slamming the Kardashian family for keeping mum about the rumor on their end.
Life & Style magazine reports that the fling between Cavallari and Disick occurred while the eldest Kardashian sister was pregnant.
"While Kourtney and Scott were on a break, Scott hooked up with Kristin," a source is quoted as telling the magazine.
According to the insider, they first met up during a trip to Las Vegas.
"Scott and Kristin hooked up in Las Vegas during a time [February 2009] that he was on a break from Kourtney," the source said.
Cavallari went on the record during her appearance on The Billy Bush Show to claim that the rumors are "100 percent not true."
Cavallari said she was also upset that Disick, 28, and the Kardashian family didn't deny the tabloid story outright.
"I just think, what convenient timing for them with their show premiering next week. With everything that's going on for Kim, I feel like they're trying to take the heat off her," she said. "When there's a big story like that, they always call you and ask if you want to comment and clearly none of them denied it."
"It's disrespectful to me and Jay," Cavallari added, "and I think it just says a lot about their character."
Cavallari and Kardashian were actually close friends back when the MTV starlet dated Kardashian's step brother Brody Jenner, but they had a falling out a few years ago.
Image courtesy WENN