The parents-to-be were seen leaving a local eatery in Los Angeles wearing matching grey cardigans as they walked to their car with a few friends.
The pregnant brunette donned a loose black jumpsuit for the casual occasion while her leading man opted for a pair of worn-in jeans, a white T-shirt and a Chicago Bears baseball cap.
Both actors were all smiles following their brunch date, with Kunis trailing shortly behind Kutcher on the sidewalk as they left the restaurant.
The Two and a Half Men star showed off his chivalrous side by holding the car door open for his longtime love.
Kunis, who is expected to give birth to the couple's first child later this year, has made no secret of her pregnancy cravings lately.
Earlier this month, she joked with Ellen DeGeneres about how she's become obsessed with all things sauerkraut.
"I eat sauerkraut all day long," she told the daytime talk show host. "This is the worst craving to have because sauerkraut smells and so every time you open up a jar it just reeks in the whole kitchen...It's not like ice cream where everything smells lovely."
She also revealed that she'll be opting out of getting an epidural during the birth, saying, "I'm gonna do it as all natural as I possibly can unless that there's an emergency."