"I've always been one for pushing the limits," said Tina. "I got my first tattoo–the one on my ankle–in the week I graduated from high school. Then I got my belly jewelry and the other tattoos every so often after that, whenever I felt that I was getting too stale. The last time I started feeling like that, just a couple of months ago, I was in a bookstore buying some magazines for my sick boyfriend. I included a NN, and looking at it later with him, I got the idea to pose. It's like, the perfect next...