"We really didn't want helicopters at our wedding and it's a legitimate concern. I was, like, posting things on social media that were in different locations to avoid it," he explained.
"We didn't want to be screaming our vows at each other and being like, 'Forever! Did you say never?' " he added. "We went really under the radar with it."
The actor, social media mogul and father to toddler Wyatt also discussed parenthood and its difficulties. According to him, the parents' job in their baby's first year of life is to keep them alive; after, it's to "keep them from killing themselves."
"She tried to kill herself on a regular basis," Kutcher quipped. "Like, she doesn't realize that's a cliff and could be dangerous. She'll just jump off the thing. She doesn't know yet."
"You would think that they would come with instincts around fire and large falls, and they don't," he said.
In November of last year, the secretive star shared a rare photo of his and Kunis' young daughter -- who was born in October 2014 -- to promote the #RedSandProject.