Kristin Cavallari was the bad girl we loved to hate on MTV's Laguna Beach and The Hills.
While her days on the popular reality dramas are long gone, there's one castmate Cavallari has kept in touch with: Heidi Montag.
"I talk to Heidi all the time, yeah," Cavallari told ET on Thursday promoting the Chinese Laundry Fall Fashion Campaign. "It seems like she's doing really well and [she and husband Spencer Pratt] are really happy."
The 28-year-old recently designed a line of boots and shoes for Chinese Laundry, and says she's happy that her former Hills co-stars have been able to make their relationship work even after the cameras stopped rolling.
"I love that they're still married," she said, "and they've sort of shut up all the haters, you know?"
Cavallari admits her experience living through the drama on Laguna Beach and The Hills actually helped prepare her for life as the wife of an NFL star.
"They can be very gossipy, just like in entertainment, and so it's probably a good thing that this isn't all new for me," Cavallari explained of the culture among NFL families. "You know, it's just par for the course."
Cavallari and Cutler already share two children -- 3-year-old son Camden and 1-year-old son Jaxon -- and she says she has major reservations when it comes to the idea of her children starring on reality shows in the future.
"God, I would almost rather my kids play football than do reality TV," she admitted. "Laguna Beach was such a great experience but we were so young. I was a junior in high school and we didn't realize what we were getting into. We were thrown into certain situations that were supposed to push our buttons and manipulated situations and it was kind of hard to deal with at the time."
"I want my kids to be kids," Cavallari added.