The Bad Moms star opened up in an interview with On Air with Ryan Seacrest on Friday, where she revealed her plans to expand her family.
"After we had Wyatt, the second I gave birth, I knew we had to have another baby. We both knew it, we just felt it," she said. "And so I always say after the second one, we'll know if we need to have another one."
"I really do believe you know when your family is complete," she added.
The 32-year-old actress may be looking forward to having more kids, but for now, she's clearly got her hands full with 21-month-old daughter Wyatt.
"Every night that we play 'put Wyatt down,' we high-five each other and we're like, 'We did it!' Every single day we kept her alive we're like, 'She's alive!'" Kunis joked to ET at Tuesday's premiere of Bad Moms.
"And we're still in love," she continued. "Like, you high-five when you still like each other and you still like your kid at the end of the night. Because sometimes they're the devil. They're the devil."
It's clear it's the simple things in life that bring Kunis and Kutcher, 38, joy. The same applies to their wedding rings!
The Black Swan star recently shared that she and Kutcher bought their wedding bands on Etsy, for a total of $190.