Reality villain Kristin Cavallari has revealed that while “The Hills” was fake, her feud with Lauren “L.C.” Conrad was very real.

The California native explained on Bravo’s “Watch What Happens Live” Monday night that her relationship with Justin Bobby was all an act. Cavallari was notorious on “The Hills” for being the “bad girl” and being able to get any guy she wanted.

Most figured that the popular reality show on MTV might have been dramatized a little, but Cavallari explained that the show was actually “pretty fake” and that she was “pretty much coached on what to say and do.”

When the 25-year-old blonde was asked who she regretted dating more, Justin “Bobby” Brescia or Brody Jenner, she replied, “No one. I would say Justin, but I never really dated him.”

That’s when she was flat-out asked if the show was fake, and she clearly responded, “Yeah,” which also means that the make-out sessions on the show were fake also.

“I think I made out with him once, and that took a lot of convincing,” Kristin described. “Finally, I was like, ‘All right, I'll just do it!’”

“Fake relationships, fake fights, but it was fun, 'cause you're acting. And that was more fun for me.”

But when asked about the feud with Conrad, Cavallari admitted there was nothing fake about it but added that “The Hills” producers made their distaste for each other worse.

“I feel like they put things in our heads. I mean, we were 17 and 18. They made it a lot worse than it was.”

 She's very successful. And we actually have had a lot of really fun nights together, so she can be a lot of fun.”

When asked to say three nice things about Conrad, Cavallari responded, “She is a very pretty girl, [and] I know she said the same thing. She's very successful. And we actually have had a lot of really fun nights together, so she can be a lot of fun.”

Toward the end of the interview, the California girl explained that the whole show wasn’t necessarily a sham: “I think the story they told wasn't a dishonest one. The way they did it sometimes was.

“They aren't going to be there for everything. Sometimes, two characters will get into a fight, and that's important to the story line. The [producers] need that reenacted.”

Since “The Hills” ended in 2010, Cavallari has moved on with her life by becoming a fashion designer and starting a family with her fiancé, Jay Cutler, and 4-month-old son, Camden.