As Kunis prepares to welcome her second child in a few months, the actress reflected on her first pregnancy with the couple's daughter, Wyatt Isabelle, born in October 2014, and how she got ready to have a baby.
"I took a chunk of time off. If it were up to [Ashton], we would have had kids much sooner. But I had contracts for films I had to do," Kunis recounted. "I was like, 'Let me finish this last thing, Jupiter Ascending, and we’re a go. I’m going to take a solid break from acting.'"
"And let me tell you, when I would get a call with an offer, I wouldn’t even flinch. I was like, 'No, I'm pregnant.' 'No, I have a baby,'" she added. "I wasn’t ready to go back. I was so happy saying 'No,' that I knew it was the right decision."
Since welcoming their daughter, the 32-year-old actress says she's learned a lot about kids. Namely, she's discovered that "children are f**king crazy."
"They're also suicidal. Like, at the park, certain jungle gyms have an opening for older kids to jump out of. [Wyatt is] 19 months; she can't jump. She just walks off it as if she’s on a pirate ship," Kunis shared.
"Another important thing to learn is that kids have a personality that has nothing to do with you," she continued. "I have a really sweet daughter. She wants to hug all the other kids. I didn’t teach her to be sweet. It has nothing to do with me. I’ve realized you can control only so much."
As it turns out, the actress has also learned a lot about her husband in their years together, including the look on his face when he's not telling her the truth.
"We can't bulls**t each other. I literally can't lie to him. He can call me out on everything, and I can do the same, because there's nothing about the other person's face that we don't know. We know when they're acting, thus we know when they're lying," Kunis explained.
The former That '70s Show co-stars sparked their romance in April 2012, and got engaged in February 2014, seven months before they welcomed their baby girl. The couple officially tied the knot in July 2015, at a secluded ceremony at the Parrish Pioneer Ranch in Oak Glen, California.
"There's nothing we don't know about each other because we've known each other for so long: the ugly, the bad, the good," said Kunis, who started working on the Fox sitcom with her future husband when she was just 14 years old. "We went through a period where I thought he was crazy. At the height of his career, I was like, 'Ugh, I don’t like you. I don’t even know you anymore,'… then we’d get back together and be like, 'Oh, sorry. I didn't mean to overreact.'"
"It truly is being married to your best friend. That’s a cliché; it's cheesy. But it's true," she added.
The actress has the same fondness for openness and honesty in her career -- specifically when it comes to Photoshopping her pictures in magazines and ads.
"I hate it. There was a company that I did a photo shoot for once that manipulated the photo so much, I was like, 'That's not even me,'" Kunis said. "Now, do I sometimes want them to depuff my eyes? Help me out with a little bit of lighting. But do I want them to stretch my legs, thin out my waist, curve my hips, elongate my neck, blah, blah, blah? No."
Kunis' issue of Glamour magazine hits stands July 12.
The 32-year-old actress spoke with ET on the set of Bad Moms in February where she gushed about wanting to expand her family prior to announcing her second pregnancy. Check out the video below to hear more.