Former Laguna Beach star Casey Reinhardt is a first-time mother.

The 30-year-old reality TV star and her entrepreneur husband Sean Brown welcomed baby daughter Kensington into the world on Tuesday (16Aug16).

Sharing a snap of the new addition swaddled in a blanket, Sean wrote on Instagram: "Kensington Kelly Brown stole my heart on 8/16/16. I love you forever. Casey you have made my life immeasurably better in every possible way. Life is good!"

Casey has yet to comment on her happy baby news on social media, with her last post coming five days ago when she shared a snap of her cradling her bump alongside a pregnant friend, writing alongside the Instagram picture: "38.5 weeks pregnant! I woke up feeling great today so we decided to do some brunching with our hubby's while waiting for baby girl to make her appearance #readytopop."

Casey and Sean announced their pregnancy news in early April (16), little over a month after the couple tied the knot on the beach in California in February (16), after a six-month engagement.

"Last night was the most magical, incredible, most emotional night of my life!!!," Casey wrote after the ceremony.

"I became Mrs. Casey Beau Brown and I get to spend the rest of my life with the most amazing man who ever walked this earth," she added. "I'm so happy, so in love, and so overwhelmed with emotion just thinking about how beautiful the rest of our lives are going to be together (sic). You are my angel on earth @seanmbrown1 and I'm the luckiest girl in the world to be your wife!!!"

Casey is the sister of Doug Reinhardt, Paris Hilton's ex-boyfriend, while Sean is the nephew of O.J. Simpson's late wife Nicole Brown Simpson.