Blac Chyna has a complicated relationship with the family, and a source previously told PEOPLE Rob's sister Kylie Jenner is "livid" about the relationship. Blac Chyna, 27, was once close friends with Rob's sister Kim Kardashian West, but that friendship soured when Blac Chyna's ex-fiancé Tyga began dating Kylie. Tyga and Blac Chyna share one son – King Cairo, 3.
But those familial complications have not lessened Rob's enthusiasm for the romance.
Also read: David Cassidy, Doctors Say the End is Near