"I was really into this guy, but he dumped me because, he said, I had too many hang-ups about sex," said Nena. "He was only the second guy I'd ever screwed and sometimes I wasn't sure what to do. But I was trying really hard to be uninhibited when we had sex. I was upset about it till my girlfriend talked me into posing for her and sending the photos in for publication. She said if I could do this, then I don't have any hang-ups, and I need a guy who appreciates that I'm a learner at sex and will...