Penny looks like a girl named Penny is supposed to look. Fresh-faced, clean-cut and young. Think of apple-pie, freckles and an afternoon in the sun of the American southwest. Penny is a community college student who likes dancing and shopping, spending time on social network sites on the Internet and watching TV shows like Tyra Banks and Top Model. "I've never posed naked before or even thought of playing with a vibrator,” Penny related. "I was more nervous than when I took my driving test and I was so nervous then. But when I looked at my photos, I looked like it was the most natural thing in the world. Believe me, I was really nervous! I know that models are cool about talking about sex and stuff from what I've read and seen on-line but that's kinda new to me too,...