Supermodel sisters Gigi and Bella Hadid revealed that they have a 23-year-old half-sister named Aydan Nix, born from their father Mohamed Hadid's relationship with Terri Hatfield Dull. Aydan, who grew up in Florida, discovered her biological connection to the Hadid family after taking a genetic test. The Hadid sisters have embraced Aydan and have had open conversations about supporting and protecting her privacy. Aydan, a Parsons School of Design graduate, hopes to work in the fashion industry as a designer, stylist, and influencer.
Source: https://people.com/gigi-and-bella-hadid-introduce-their-23-year-old-half-sister-aydan-nix-11745097