Adriana Lima The Bikini Heat Is On

5/8/2013 1:32 PM PDT
For once in her life, Victoria's Secret supermodel Adriana Lima did not look smokin' hot in lingerie ... because she was too busy looking smokin' hot in a bikini.

The gorgeous 31-year-old mother of two showcased her flawless golden mamacita curves by modeling a bunch of tiny sexy two-piece swimsuits for a photo shoot in St. Barts on Wednesday.

While temperatures have been hovering around the mid 80s ... we hear there is a scorching Brazilian front (and back) moving across the Caribbean island.