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Kate Upton knows how to make a splash ... in and out of the water!

The sexy Sports Illustrated cover girl is now modeling for Beach Bunny bikinis. When asked about the suits, Upton, 19, said, "I love all the embellishments and especially the lingerie details because they make you feel so sexy."

This particular black suit, called "The Kate Fatal Flowers" bikini, with ruffled flowers and jewel accents is our fave!

As for why Kate was chosen to represent the brand, Angela Chittenden, Beach Bunny's CEO, said, "She is sexy, yet confident and her fun loving and down to earth personality are traits that represent the Beach Bunny woman and brand as a whole."

See more of Kate workin' those Beach Bunny suits in our gallery below.