"I find it a total turn-off when young women present themselves that way"
I find it a total turn-on. I think innocent girls jumping rope is cute, too, but I reject the stereotype (mostly peddled by pedos themselves, almost as if they were trying to convince the world of something) that "pedophiles" can't handle anything raunchier than that.
That said, I appreciated the exhibition of the girls bodies throughout the film, but there was only a single scene that actually provoked a physical response in me. And that was the scene when Amy started undressing for the man. The dancing is erotic, but I agree that it's not sexuality in the same way that actual sex (or the promise thereof) is.