Rob Mariano and Amber Mariano Rob Mariano and Amber Mariano

It's another girl for Survivor couple Rob and Amber Mariano.

Carina Rose Mariano was born Dec. 10 — almost in the back of the couple's car.

"By the time we got to the car, [contractions] were a minute apart, and we live 40 minutes from the hospital. We got there at 2:15 a.m. and she had the baby at 2:25 a.m. There was no time for an IV, no time for an epidural. It was amazing what she did," Mariano said at the Survivor: Nicaragua live reunion show Sunday.

See other celebrity babies born this year

Rob and Amber Rob fell in love when they competed on the Survivor: All-Stars season in 2004. During that live finale, in which Amber was announced as the winner and Rob the runner-up, the two became engaged. In 2005, CBS aired a two-hour special detailing their wedding.

Carina joins 17-month-old big sister Lucia Rose.