Gigi Hadid is sending her love to her brother Anwar Hadid’s girlfriend Dua Lipa, on her 25th birthday! The fellow 25-year-old, pregnant model took to her Instagram Story on Saturday (August 22) to wish Dua a happy birthday. “HAPPY BDAY DEXTER’S MOM @dualipa,” Gigi wrote, referencing Dua and Anwar‘s dog Dexter.