Kathy Hilton and Kyle Richards have shared plenty of memorable moments on The Real Housewives of Beverly Hills over the years. Recently, Kathy took a walk down memory lane to reflect on some of her earliest times growing up with her little sister, Kyle, along with RHOBH alum Kim Richards, which she shared exclusively in an interview with Bravo Insider.

“We have a nine-year age difference, so obviously, at Christmas, I figured out Santa wasn’t real. But Kyle didn’t know that. So I was able to join in the fun with my mom and dad and help surprise her,” Kathy says in the Bravo Insider video above.

Kathy also shared exactly what it was like being a big sister to both Kyle and Kim, remembering moments she’d spend with her little sisters, which sometimes included playing chauffeur once she was old enough to get behind the wheel. “She and Kim would wake me up on Saturday morning and bug me to watch cartoons,” Kathy says. “Or when I first got my car, they would want me to take them to the market to go and buy cereal that they saw on the commercials.”

Kathy went on to reveal some surprising (and hilarious) childhood memories involving Kim and Kyle, including details on what her younger sisters did as a prank when she had “a boy over” at the house, which you can check out in the full Bravo Insider clip, above.

Kyle also couldn’t resist sharing memories of her sister, revealing how Kathy was “always very funny” and spilling all the tea about what it was like growing up together in an exclusive interview with Bravo Insider, which you can check out below!

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