Mario Lopez and girlfriend Courtney Mazza’s lives have changed: last week their daughter, now 6-month-old Gia Grancesca, started crawling!

“Now I’m worried about what she’s going to run into,” he told People Friday. “I’ve got to childproof the house!”

That’s right–crawling leads to walking, and those little legs are not too sturdy at first! But even if she sustains a few bumps from all the practice, she’s still “getting cuter and chubbier every day”.

“Everything has changed. The way you look at life, the way you look at relationships, the way you approach everything,” he explained. “My mornings are better because I get to see her. I enjoy coming home. No matter how hard of a day I had, I get to see her little face and everything works out.”

With all the child raising going on, will there be time for much else in their lives? “Everything is great right now,” he said, “We’re looking forward to [marriage] later on.”