04/05/2010 05:12 am ET Updated May 25, 2011

Lauren Conrad On New Book 'Sweet Little Lies' And Heidi's Plastic Surgery (VIDEO)

Lauren Conrad's new book for teens, "Sweet Little Lies," is out today, and Lauren was on Good Morning America to talk about life as an author and translating her experiences on "The Hills" to fiction. She defended her inclusion of "racy themes," saying that she intentionally included consequences for her characters' mistakes.

What Conrad wouldn't talk about, though, was what she thought of "The Hills" co-star Heidi Montag's new plastic surgery. "It's a look," she said.