Rob and Amber Mariano

Survivor couple Boston Rob and Amber Mariano welcomed their third daughter, Isabetta Rose, earlier this month, People reports.

She was born on May 5 in Pensacola, Fla., weighing in at 7 pounds, 3 ounces. "Isabetta was born with a full head of brown hair and blue eyes," Amber, 33,  told the magazine. "She still has all of her hair almost six weeks later, and her eyes are still as blue as can be."

Check out photos of Boston Rob Mariano

Isabetta joins older sisters Lucia, 2, and Carina, 18 months. "Her sisters can't get enough of her," Amber said. "They always want to hold her and I'm not sure who gives her more kisses — her big sisters or her parents!"

After meeting on Survivor: All-Stars in 2003, Rob, now 36, famously proposed to her on the show's live finale when they were the last two competitors still fighting for the million-dollar prize (Amber won). The two married in 2005, and Rob finally won Survivor in 2011 during the "Redemption Island" season. The couple also competed together twice on The Amazing Race, and Rob most recently co-hosted History Channel's Around the World in 80 Ways last year.

"Three girls under 3 has made life a little crazy at times," Amber said, "but that is what Rob and I are all about. We are absolutely loving life with our three little princesses."