About a week ago I was bored on Craigslist and found posting from men who were looking for college-aged girls to play the "sugar daddy" role for. I emailed a couple of them out of curiosity, and got a couple responses which I deleted when I realized I could never do that. One guy kept offering me more and more, and I, really needing the money, finally accepted. The police are now trying to charge me with prostitution, asking him to testify against me. He said he'll hire a lawyer to avoid testifying, but wants me to pay him back with more sexual favors. This is the first and last time I've ever done something like this, and I don't think I could live with myself if I ever did it again. How should I proceed? Should I go to the department and confess?