United Kingdom, May 30 -- Gigi and Bella Hadid are "cherishing" their newly-discovered secret half-sister Aydan Nix.

The models have confirmed they recently found out their father Mohamed Hadid welcomed another daughter with Terri Hatfield Dull after his divorce from Gigi and Bella's mother Yolanda Hadid - and Aydan, 23, didn't know about her heritage until the man she thought was her real father passed away when she was 19. Aydan took a genetic test "out of curiosity" and eventually connected with the Hadids in 2023.

Gigi and Bella explained in a statement released to the Daily Mail, saying: "Over 20 years ago, our dad, while single, had a brief relationship that led to a pregnancy. Aydan was born and raised in Florida, growing up with...