Australian model Natalie Roser sizzles in a red string bikini at

She is preparing to walk the runway at Miami Swim Week, the annual showcase of the world
She is preparing to walk the runway at Miami Swim Week, the annual showcase of the world's hottest swimwear designers.

Model Natalie Roser wears red G-string bikini on beach balcony

Natalie Roser shows off her pert derrière in a bikini as she goes for a swim

Natalie Roser appears in new lingerie campaign

Aussie model flaunts G-string in see-through dress at Meshki's 10th birthday party

Australian Model Natalie Roser Poses Beachside in the Sweetest Scrunchy Floral Bikini

Natalie Roser shows off her pert derriere in a racy g-string bikini

Aussie model Natalie Roser showcases her jaw-dropping bikini body poolside

Natalie Roser and Brooke Nash turn up the heat - HUSSKIE

Aussie model Natalie Roser showcases her jaw-dropping bikini body poolside

Model Natalie Roser's new romance with Neighbours star Harley Bonner heats up