uh it's not just the "ass" part for the shorts of that kind. The material also goes up the front which makes for a frontal anatomical display.

But I don't think the women that wear them are getting "unwanted attention." They are specifically looking for the attention, at least from the guys they want the attention from.

On a separate note, my wife gets exasperated with the new rage of butt cheek baring thongs in swimwear. LOL