In the precious photo, the 30-year-old actress holds her newborn son, Sebastian, in her arms as he sleeps.
"I've never known a love like this," she wrote, adding the hashtags #Sebastian, #MochaViking, #Love, #Magic, #ImAmommy and #MySon, as well as a baby emoji. "He's pure magic. Thank you for all the love. We feel all of it."