Ive always wondered how celebs and lingerie models get away with wearing sheer clothing without having a wardrobe malfunction. Katy Perry pulled off this Marchesa dress with out a nip slip, so i wanted the deets on this styling trick. Here is the answer you have all been waiting for: (drum roll) Bristols 6 Nippies! While hosting the 2009 MTV Europe Music Awards in Berlin Katy sported these chic "Like a Virgin" nipple covers. Bristols makes the couture of nipple covers.(I never thought i would ever say that..lol) They carry sequined, lace, satin nippies in a variety of colors. I cant tell you how many times Ive seen girls who need these on red carpets in Manhattan. If you are planning on going bra-less and are going to wear a light dress, please invest in these!