Having lived in a majority Muslim country for a year, I can totally say that covering up does not change how often or with what intent I look at women in general. What it does do, however, is make me look a lot more at the ones wearing less clothing, but I think that's mostly just because they're out of place. Also, I'd probably be more likely to try to hit on a girl wearing less because at least I know she's not super religious and maybe (obviously not certainly, but maybe) more liberal sexually/romantically. Same way I'd be more likely to hit on a girl drinking alcohol. Whereas in the states I would give little to no fucks about what a girl was wearing or whether or not she drank.

That said, I was at a beach resort a few months ago with tons of foreign ladies walkin around wearing bathing suits and other small amounts of clothing, and I still found myself looking at a fully covered woman (like those in this picture) who had very pretty eyes and her covering (idk what these would be. I don't think they're burkas. chador? whatever) cinched at the waist so you could get the most basic idea of a figure.

So, from my point of view, MYTH BUSTED, wear what you want, ladies!

Oh, and you know what creates lust? Sexually repressive societies with strict gender roles and a lack of public dialogue about sex.