Tensions may be brewing between Gigi and Bella Hadid. There may be a sibling rivalry brewing between models Gigi and Bella Hadid. While both of the women, who are the daughters of real estate mogul Mohamed Hadid and his ex-wife Yolanda, have been at the top of the modeling game for years, a new report claims that Gigi may be feeling envious of her sister's recent track record of booking major fashion gigs.