Courtesy Rob Mariano
Four for four!
“We are thrilled to announce [the birth of] Adelina Rose Mariano 12:51 a.m. June 20th, 2014,” Rob, 38, wrote, sharing a photo of himself and his wife, 35, with their newborn.
“[The girls] are beyond excited to welcome their new sister,” Rob captioned a second photo of all four of his daughters.
The couple, who announced the pregnancy on New Year’s Eve, competed on Survivor and The Amazing Race before wedding in the Bahamas in 2005.
“I’m definitely outnumbered now,” Rob, who won Survivor on his fourth try in 2011, previously told PEOPLE. “But at the end of the day, it’s exciting and fun.”
Lucia Rose, Carina Rose, and Isabetta Rose are beyond excited to welcome their new sister Adelina Rose! pic.twitter.com/kSFm6N9Lj6
— Boston Rob (@BostonRob) June 20, 2014
– Sarah Michaud