SISTER ACT: N&K stands for designers Adriana and Katerina Lopez’s nicknames: Nani & Kaki.The South Miami sisters launched their bauble brand less than two months ago. Think dainty necklaces and beaded charm bracelets made out of freshwater pearls, jade, onyx and gold. Closet Boutique owner Loretta Armada said it's her best selling jewelry line. “As soon as get a new shipment they go go fast,” she said. The line retails under $65. GET IT:The Closet Boutique, 6354 Bird Road, 305-668-6472 .