The 'Keeping Up with the Kardashians' star shared that despite her transition into Caitlyn, herself and sisters call him Bruce because "when she calls me, it's the same voice as Bruce."

She said: "We, my sisters and I, we will call Caitlyn "Bruce" and we've been told that's completely fine. We are allowed to call her any name we want to. Because on the phone, when she calls me, it's the same voice as Bruce.