updated 11/30/2013 AT 3:00 PM ET
•originally published 11/30/2013 AT 3:30 PM ET
The twosome hit Miami’s posh boutique The Webster on Collins Avenue and closed down the store for a private shopping spree. Kardashian wore a flouncy black-and-white dress and high heels for the occasion, while West went more low-key in a ripped T-shirt and jeans.
The couple, who got engaged on Oct. 21, created quite the scene while in the sunny city. “People on the street were going crazy to get a glimpse of them,” an onlooker tells PEOPLE. “They were lined up around the block.”
Earlier, Kardashian had posted Instagram photos of her and West celebrating Thanksgiving in Miami – the soon-to-be-newlyweds were in town for the rapper’s concert at American Airlines Arena.
The Florida trip may not have been all play, though: Kardashian is opening a Dash boutique just a few blocks away, and West is set to make an appearance next week at an art event in Miami during Art Basel.
– Becky Randel