When the Kardashian family decided to expand their clothing store business to Miami, there was one surefire way of generating interest... get Kim to wear a bikini. The reality TV star, 28, showed off her curvaceous figure in a skimpy purple psychedelic-print two piece from the store as she strolled through the surf on Miami Beach. Kim spent last week in Florida to support the family business as her sisters Kourtney, 30, and Khloe, 24, opened the second branch of their Dash clothing boutique.

You too can look like me: Kim Kardashian plugs a bikini at her family's store as she strolls along Miami Beach The socialite has recently slimmed down after overhauling her diet and fitness regime as she was pictured with cellulite during a photoshoot earlier this year. She has revealed the secrets behind her new shape in a fitness DVD collection, entitled Fit In Your Jeans By Friday. The DVDs, which went on sale in the U.S. last month, are sold in three seperate sections Amazing Abs Body Sculpt, Ultimate Butt Body Sculpt and Amazing Abs Body Sculpt. Clearly pleased with the results, Kim has been taking the opportunity to show off her figure during her recent jaunt to sunny Miami. So her day at the beach wasn't just a chance to relax in the sun - it was also a way to plug not only her DVD by showing off what it can do, but also a bikini from the new Dash store.

Fright: Kim (L) and her sister Kourtney's roller-blading fun was interrupted by an angry dog Writing on her Twitter micro-blogging page, Kim said: 'The purple bikini is from Dash Miami. Later that afternoon, Kim covered up in a coral playsuit to go roller-blading with Kourtney. But it wasn't all fun and games when an angry dog started barking at the two terrified sisters. The Miami branch of Dash opened last Wednesday and is run by her sisters Khloe and Kourtney, who have temporarily relocated to Florida from the family home in Beverly Hills. Kim also co-owns the original Dash in the LA suburb of Calabasas with Kourtney and Khloe. Last week, both Dash stores on opposite coasts were vandalised by unknown gangs.

Police believe the LA attack was a copycat response to the Miami store prior to its official opening. Meanwhile, Kim recently fuelled rumours she is getting engaged to her boyfriend, American football player Reggie Bush, when she admitted she had been looking for an engagement ring with her friends. The couple only celebrated their two year anniversary in last month, but divorcee Kim is determined to marry the New Orleans Saints running back. She said: 'He definitely knows all of us went ring shopping. I definitely scared him and told it was probably way more expensive than it is, just so that when he goes he feels like he's getting a good deal. 'He knows what it looks like. I think I've emailed him enough pictures.' Kim was previously wed to music producer Damon Thomas, but they divorced in 2004 after four years of marriage.