It looks like Petra Nemcova has been injecting collagen or some other substance into her lips. See the bigger photo here at Hollywood Tuna. I'd be very interested to hear from one of the pros, maybe Dr. Tony Youn or Dr. Di Saia as to their verdict on whether these lips are natural or enhanced.

Petrova, 27 is a Czech supermodel and author. She was in Thailand when the tsunami hit. She clung to a palm tree for eight hours and survived with serious injuries. Her fiancee died there.

She's written a book; Love Always, Petraabout her early life experience under Communist rule and the Sports Illustrated breakthrough in her modeling career. The book also details how she met her fiancee and their brief life together.