Sexy bikini dresses - only a bikini can be sexier than a cocktail dress for a summer party. Yes, there is a place for a swimsuit in a luxurious cocktail look. Just wear it the way Isabelle does. The supermodel paired a crisp white bikini top with a full-length ruffled skirt and a sexy slit. Complement such an outfit with sexy sandals with thin straps or trendy flip flops with heels - the title of the queen of any pool party is guaranteed.