Nikki's Unknown Sister/Spoilers

Spoilers from All About Us' episode, Niki's Unknown Sister.
AAU Spoilers: Niki Merrick has an unknown sister!
Niki will soon discover another secret from her estranged father.
Niki Merrick is going through turmoil after finding out her father's reason behind her parents split in the last episode.
In the next episode, the blonde bombshell will soon learn of her father's shockingly second secret she didn't know existed.
Niki will discover that she has an unknown sister that she didn't know from her father's affair.