Alessandra Ambrosio, 40, goes topless with only tiny bikini briefs

Alessandra Ambrosio puts her model-body on display in a baby blue bikini

Alessandra Ambrosio, 40, prances around in the sand in a skintight one-piece swimsuit

Alessandra Ambrosio Channels Pamela Anderson In Sexy One-Piece Bathing Suit & Surfboard: Photo