Kim and Kourtney Kardashian in Miami

Kim is one of the hottest socialites in Tinseltown and Kim Kardashian is beating the winter chill with her sister Kourtney.

The “Keeping Up With the Kardashians” stars were spotted at the Stoli Hotel looking their best, with Kim in a plunging powder blue dress and Kourtney wearing a bright yellow fringe-bottom dress. They both looked relaxed, due in part to a massage session earlier in the day.

And it’s been a crazy week for Kim - before landing in Miami she was hanging out in Park City, Utah for the Sundance Film festival with her boy toy Reggie Bush. She reportedly made the most of the celebrity freebees as well.

She told Fox Pop Tarts, “I have been given so many lovely things, which I’m so thankful for — it has just been amazing,” said the surprisingly soft-spoken starlet. “But my favorite? I got some gorgeous underwear.”