Lisa Vanderpumpeldest child, Pandora Sabois expecting her second child with husband Jason Sabo.

The former Real Housewives of Beverly Hills star, her daughter and son-in-law all hit the red carpet at the Vanderpump Dogs Gala at Maybourne Beverly Hills on Friday, September 15. Pandora and Jason, both 38, posed for photos with their son, Teddy, 3.

Lisa, 64, tells PEOPLE exclusively that her daughter is expecting her second child. “Yes, we’re expecting our second grandchild, so it’s very exciting.”

“(She) hasn’t even announced it,” Lisa reveals. While Vanderpump Rules star says she knows the grandchild’s gender, she was tight-lipped about further details.

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Pandora and Sabo announced the birth by Theodore in November 2021.

“Theodore. 6lb 7oz of pure delicious joy. Your entry into this world was the best day of our entire lives and your dad and I are so thankful you are here, healthy and happy,” Pandora wrote in the caption on Instagram. “You are so loved little Teddy!”

“Theodore. You are my everything, I love you so much, thank you for making me a mother!” she texted another photo.