Christina Ricci shows off her baby bump in new ads for Heaven by Marc Jacobs

Christina Ricci, who’s pregnant with her second child — and first with husband Mark Hampton, whom she married in October — is the star of the new Heaven by Marc Jacobs campaign.

In one of the images, the 41-year-old “Black Snake Moan” actress models a starry, single-buttoned cardigan ($295) from the designer’s diffusion line, showing off her baby bump by wearing nothing beneath besides black underwear.

“Me and the baby for @heavn by @themarcjacobs,” Ricci captioned the shot on Instagram Wednesday.

The star, who sports smoky blue eye makeup and a sleek retro hairstyle in the ads, also celebrated “baby’s first campaign” in a low-slung floral satin skirt ($175) from the line, covering her chest with a matching printed tote ($245) and rocking “Heaven” hoop earrings ($75).

As the star of classic ’90s flicks including “Now and Then,” “The Addams Family” and “Casper,” Ricci makes sense as a face for the brand; Jacobs’ nostalgic Heaven collection draws inspiration from movies of the same decade, like Gregg Araki’s “Nowhere” and Sofia Coppola’s “The Virgin Suicides.”

Ricci also shares a 7-year-old son, Freddie, from her previous marriage to James Heerdegen.