Break out the bubbly because Katie Maloney-Schwartz has an incredibly adorable reason to celebrate. The Vanderpump Rules SURver is officially an aunt. She shared the news — and the photo of her new little niece, Sonia Dot — on Instagram.

"I'm officially an Auntie! Meet Sonia Dot, perfect baby girl! Congrats mommy and daddy @valeriegeller @redlight24fps," she wrote about the tot, born to her brother, Joey Maloney, and his significant other, Valerie. The baby was born on November 1 in L.A. and weighed in at 7 pounds, 12 ounces, according to her proud mama, who noted she was already "so in love" with her daughter.

According to Joey's Instagram feed, he and Valerie met a few years back on a dating app. And it looks like they've been living happily ever after since — especially now that they are a trio.

"There are no words to describe this feeling. This little one joined us today and is absolutely perfect," Joey wrote about becoming a dad.

We hope this is now the opportunity for Tom Schwartz to finally put his diaper skills to the test.