The 34-year-old model and her hubby, Griffin Guess, welcomed the newborn into the world on Thursday (December 13).
“I’m completely overjoyed by the birth of our son. I feel so blessed to be a mom and am so excited to experience this next part of life,” Marisa said in a statement to People.
In case you missed it, check out Marisa baring her baby bump in this totally nude photo shoot for Allure.
Congratulations to the happy family!