Has the bad girl from The Hills turned good?

Kristin Cavallari, known for her unvarnished opinions on the MTV reality show, says she’s a better person than she’s portrayed on the show — and that the real Kristin is the one who’s been doing charity work recently.

“If you asked my real friends, they would say I’m definitely not a bitch,” Cavallari, 23, told People Magazine on Saturday while hosting a party at Liquid Pool Lounge in Las Vegas. “I definitely stand up for myself, and I’m not a pushover.”

Cavallari’s plans for life after The Hills, whose final season premieres Tuesday, include helping those less fortunate.