Bella Thorne showcases her slim figure in a bright orange bikini with risque cutouts

Bella Hadid and Hailey Bieber wear skimpy bikinis in Sardinia

Nikki Bella displays her baby bump in red as she prepares to welcome baby boy with Artem Chigvintsev

Bella Hadid says she 'is the most proud sister in the world' in birthday post to brother Anwar