Two under two! Laguna Beach alum Casey Reinhardt is a mom — again! The former reality star has given birth to a baby boy, and she shared the exciting news on Instagram.

"He’s here!!! @seanmbrown1 and I welcomed our sweet little boy Sean Duane Brown into the world on the evening of 1/18/18," she wrote. "We are soaking in all the love and excitement and counting our blessings every second! He is the most precious little angel baby and Sean, Kensington, and I are already so in love with him!" Casey and her husband Sean are already the proud parents of daughter Kensington, who turns two in August.

Previously, the 31-year-old, who is now the COO of Casey's Cupcakes, opened up to Life & Style about welcoming her second child, and revealed that she still keeps in touch with her Laguna Beach castmates. "We are so happy our babies will be so close in age — 16 months apart actually," she said. "Growing up with a sibling so close is the best. We are so excited for our kids to have a built-in best friend! I'm trying to prepare myself for having two babies under two!"

She continued, "There's totally been a Laguna baby boom! Many of us follow each other on social media and so we get to see how our little ones are doing. It's so fun to see how everyone's lives are changing and transforming now more than ever!"

She also revealed the inspiration behind her newborn son's name on social media. "My incredible hubby with his baby boy Sean Jr… I had to name my son after the most incredible man in the world to me… he was originally supposed to be named Stratton Sean but when he came out and we saw him for the first time we knew he was a Sean Jr.," she explained. "Such a special honor for my favorite person in this world and I hope our baby boy is just like him in every way!!" Congrats to the new family-of-four!