Cameron Diaz took the stand Thursday and testified that she is not ashamed of topless pictures taken a decade ago by a photographer who threatened to sell them back to her for millions of dollars. "I wasn't ashamed to be out there like that," she said. Diaz claims the signature on a model release form giving ownership of the photos to shutterbug John Rutter was fake. Said Diaz: "I have never signed my name like that." The actress apparently dots the "i" in Diaz with a big heart.