Kourtney, Kim and Robert Kardashian celebrate the launch of Rob’s new sock line, Arthur George, with a lunch at Serafina Italian restaurant in Miami

Rob Kardashian & Kim

88151, MIAMI, FLORIDA – Monday December 10, 2012. Kourtney and Kim Kardashian are spotted picking up their younger brother Robert from the SLS hotel on Miami’s South Beach. The trio then headed for lunch at Serafina Italian restaurant to celebrate Robert’s new sock line, Arthur George, ahead of it’s launch at Neiman Marcus Bal Harbour later in the afternoon. Kim was dressed head to toe in white and gold, including gold silk pants with an elasticated waist and a see through white top. The 32-year-old reality star accessorized with her gold plated Blackberry, gold rolex and gold necklace. Kourtney sported a lace blouse and black pants, while Rob seemed to be squeezed into a tight black shirt and skinny jeans. Photograph: Brett Kaffee/Thibault Monnier, © PacificCoastNews.com **FEE MUST BE AGREED PRIOR TO USAGE** **E-TABLET/IPAD & MOBILE PHONE APP PUBLISHING REQUIRES ADDITIONAL FEES** LOS ANGELES OFFICE: +1 310 822 0419 LONDON OFFICE: +44 20 8090 4079