Jacob and Nikki are step siblings.
Jacob and Nikki became step-siblings after their parents married each other while Jacob is living with the Kennish's. Jacob met Nikki at the church he's been going to which is the same church Toby has been going to. Jacob told Nikki his father is not allowed around him but he goes to see his stepmother. Jacob has deep love for Nikki and doesn't want her to get hurt. Nikki began to really think Bay and Daphne are trying to steal him away from her but soon realized Daphne is his wife and Bay is his cousin. They both get along. When Jacob fell into his coma Nikki was scared for her stepbrother's life because she was afraid to lose him.