The pair have been spending time together in Monaco following the Grand Prix on Sunday, where Hamilton finished seventh place.
Bella wore her new favourite piece, a high-waisted thong bikini, as they took a break from partying to sunbathe on a yacht and ride around on jet skis (and we're not at all jealous).
Also on board was Bella's friend, supermodel Winnie Harlow, who denied rumours that she was dating the racing driver last year.
Stay tuned - the jury's still out on this one.
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