“Watching your daughter grow has been the coolest thing in my life,” he told E! News in February. “Watching her develop a personality, start to notice the world, smile, move. It’s been awesome.”

“I love her so much,” the NFL star added. “My wife loves her so much.”

As for who Colette more closely resembles?

“Some days I’m like, ‘Man, she’s my twin,'” Christian shared. “Other days, I see she’s a Culpo. I can see the eyebrows and the eyelashes.”

But when it comes to the little one’s personality, the jury is still out.

“It’s starting to come out more,” he said, “and we’re noticing different things every day.”

As Olivia and Christian prepare for their second child, read on to look back at their cutest pics with baby Colette.