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Marisa Miller, Allure Magazine

Brian Bowen Smith/Allure Magazine

Marisa Miller just got an early Christmas gift—her first child!

The new model mom and her music producer husband Griffin Guess welcomed a baby boy named Gavin Lee Guess yesterday, Miller's rep confirms to E! News.

The couple's son weighed in at 8 lbs., 10 oz.

Miller just recently showed off her beautiful baby bump in a nude photoshoot with Allure magazine.

"I always felt, even before I got pregnant, that it's better to accentuate your curves," she said. "It's important to really show off the belly."

The 33-year-old blond beauty announced she was pregnant back in June of this year.

Congrats, you two!