Well isn't this a cheeky new wedding  trend. Lately, photos of bridal-party butts have been popping up on Pinterest  and wedding  blogs. In the pictures, the bride and her closest pals lift up their dresses to show off their derrieres. Bridesmaid underwear has been around for some time, but now the ladies want to show it off apparently. Are you ready to add it to the list of must-snap wedding moments ?