This dress was put on Etsy.com by Greek designer Lina Petrauskiene. Yes that is a giant cutout on the ass. Nothing better than showing off your best feature, your crack. What might be more surprising is that someone actually bought it. The question is, would you be that daring? Can you even go out in public with this legally? Of course this brings back memories of Rose McGowan's backless dress she wore out with Marilyn Manson.
You can find more by this designer on her esty site.