Kunis, 31, said she has become more civic-minded since Wyatt's birth, reported Us magazine.
"I'm proud to be a stay-at-home mom. I want an eco-friendly car, I want to compost everything, because I want the world to be better for her," Kunis said.
The "Friends With Benefits" star said the pair is too busy to plan a wedding, they have found time to get involved behind the scenes of their gated 90210 community.