'Survivor' Stars Rob and Amber Mariano Expecting 4th Child

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Rob and Amber Mariano are kicking off 2014 with a big announcement.

The "Survivor" alums are expecting their fourth child, Rob Mariano announced on Twitter.

"My wife Amber is so hot, I can't keep my hands off her… Here is to 2014!!! #4," he wrote, along with a sonogram image.

See Adorable Photos of Celeb Babies

The couple began dating in 2003, when they starred on "Survivor: All-Stars," and they were wed in 2005.

In 2007, they appeared together on "The Amazing Race." But since then, Amber Mariano has stopped appearing on TV as frequently.

Now, they have three daughters, Lucia, 4, Carina, 3, and Elisabetta, 20 months.