The Hills are alive with even more drama!

Topless shots of Audrina Patridge have hit the web.

Patridge, 22, tells TMZ.com that she "took these photos years ago when I was just out of high school and beginning to model.

"I was young and very trusting of others and I didn't know to protect myself," she adds.

"It is a lesson learned, for myself, and hopefully for the young girls who look up to me."