Simpson appears in this week's issue of Us Weekly with the baby, who was born on June 30, and Johnson and the couple received the six-figure sum from the publication for the exclusive, reported New York Post.
In the issue, Simpson reveals that she and Johnson, 33, have their hands full with two kids. "With two kids, we have our hands full, but every day is a new adventure.
It's fun! I feel very at peace with being a mom," she said. The blonde beauty found out she was expecting Ace just six months after giving birth to Maxwell and she now plans to take a break from being pregnant.
"Pregnancy is a lot. It was hard to do two so close together. I have this huge sense of accomplishment, and I feel in my heart that I'm done. But obviously, accidents do happen," she added.