Roof,

Cheerleaders' uniforms are sexy, sure, but I don't think cheerleaders these days fit into the "innocent and virginal" mold any more--if they ever did. For starters, check out a cheer magazine or website, and you'll see that these are very strong, athletic (i.e. muscular) girls. It's basically a form a gymnast nowadays, not the sweet, demure type.

Then, they are likely to be very much part of the super-cool crowd, and would be, er, "liberated" from the rules that other kids ostensibly follow--especially moral codes. I'll bet the typical cheerleader these days is probably in a steady, sexual relationship with some BMOC. And he might be a Merit Scholar, as opposed to a jock!

You want virgin teenagers? Check out Mormon churches! Check out, for example, this site I found: Modest Prom Fashions for Mormon Girls

Now you want a rape fantasy to get started? Try a busload of these innocent little honeys, from a Mormon-girls-only school, on their way to a boys' school, where they've been hooked up with blind dates.

Except they never get there!