Never call a girl a whore. Never think of a girl as a whore. none of them are and if they were it would make us pimps. And not in the GFY sense.
You can refer to them as a whore on a website when describing her to a surfer. You will be going for the section of the market that hates women and only happy when they are degraded and humiliated.
Much better you describe her as "fun and sex loving who has decided she owns her body, not men, and has decided the time is right to have as much fun with it as possible."
Why is a girl who has fucked as many 10 guys a whore and a guy who has fucked only 10 girls a loser?
Are there that many guys fucking rank whores or are all the girls keeping quiet?