I'm not allowed to dress like a pimp

I was walking to work today and there was this girl who was dressed kind of stylishly, but also pretty hooker-ish - like, a short dress and boots and a big, wide belt. Nothing crazy, but it was in that gray area of "maybe she interns at Cosmo...or maybe she blows guys at Port Authority." But I realized that there's definitely a fine line between "sexy" and "whorish." And that line consists of whether the girl will take money for sex.
P.S. she would not.