The 46-year-old actress, who has three children, twins Hazel and Phinnaeus, nine, and son Henry, six, with husband Danny Moder, said she usually sets firm boundaries as she wants the trio to have the same principles that she and her spouse were raised with, reported Contactmusic.
"I'm pretty strict. I was raised in a pretty strict way and we want to instil the same principles and values that my husband and I were raised with.
"But now and again it's great to say, 'Let's do this outrageous thing - let's have an ice cream on a Wednesday!' But you can only have that moment if you have good boundaries around the rest of it," she said.