Despite completely transforming her face, Audrina Patridge insists she hasn't had any plastic surgery.
"People think I've got my nose done. My chin done. I just laugh at it," she tells Extra. "I'm just losing my baby fat - everyone grows up and changes."
"There's always rumors," she adds. "People are always going to point things out and it's entertainment. It's funny. Doesn't bother me. Goes in one ear, out the other. I read it, forget it."
The 23-year-old Patridge -- who is currently shopping around her own reality show -- also says she understands Lauren Conrad's decision to walk away from The Hills after the show's current fifth season.
"We were all pretty much ready to branch out. Go our separate ways," she says. "We feel like it's run its course."