She captioned the shot, "There's 3 of us in this pic... Another princess awaiting to be crowned... 👑💕😉 #Blessings #GirlSquadGrowing👯 #BalancingTheScalesAtHome😛❤️ #MissSA2018 "
The couple already has three other children, two boys, and one girl, so the latest female addition to the family is the balance that Mtongana was referring to in her caption.
Congratulations to Siba and Brian.
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Main image credit: instagram.com/sibamtongana