Khloe Kardashian Reveals What the Kardashian Grandkids Call Caitlyn Jenner

Caitlyn Jenner arrives at the Williams Institute for a brunch on Sunday (January 17) in Los Angeles.

The 66-year-old reality star was a special guest at the Institute’s event. The Williams Institute is an organization focused on sexual orientation and gender identities issues.

Caitlyn‘s step-daughter Khloe Kardashian appeared on Watch What Happens Live! that evening and was asked, “What do Mason, Penelope, North, and the kids call Caitlyn now?”

Khloe added, “But Mason knows…we’ll sometimes call her Grandpa, like Grandpa Bruce. He’s the oldest, so he kind of knows. So, we keep trying to teach him just out of respect. And he’ll say, ‘No, that’s Grandpa.’ Like oh, how do we do this? But in time, he’ll learn.”

Click inside to watch the video of Khloe talking about Caitlyn…