AceShowbiz -

Marisa Miller is pregnant again. She is expecting her second bundle of joy with her music producer husband Griffin Guess. Marisa tells PEOPLE, "Being a mother has been the biggest blessing in my life. To get to experience it all over again is really exciting."

Marisa and Griffin's second baby is due in late spring 2015. The couple, who tied the knot on April 15, 2006, are already parents to 22-month-old son Gavin Lee. Griffin tells E! Online, "We're thrilled to build our family! Gavin has been such a blessing and we look forward to giving him a sibling."

During her first pregnancy, the former Victoria's Secret model and Sports Illustrated cover girl posed almost naked for Allure magazine. "I always felt, even before I got pregnant, that it's better to accentuate your curves," she told the publication at that time.

"A lot of women try to tuck their butt in or kind of slouch because they're trying to hide," the "R.I.P.D." actress added, "Obviously, you can't suck it in, but it's important to really show off the belly."