As it applies to young ladies, being smart isn't necessarily sexy, but looking smart is. That's why we prefer all dumbass girls in glasses. Not that we're saying any of the fine ladies in this movie is a graduate of the dope school. Far be it for us to suggest that porn chicks are blithering idiots. But fit one of them with a pair of lenses, all of a sudden it's a different ball game. We see them in a different light. For instance, we'll entertain their views on politics and healthcare, etc. And then we'll bang 'em.