Kendall Jenner and Gigi Hadid’s friendship has become the stuff of legend among the iGeneration. But the gorgeous BFFs welcomed a new addition to their girl squad on Monday as they shot a new swimsuit spread in Malibu with none other than body-con guru Ashley Graham. The in-demand models slipped into beach wear as they posed for various lighthearted snaps in the balmy California weather just days away from Christmas.