"I can't believe you have been making me laugh and smile and extremely sleepy for 6 months now!" Teigen captioned a cute video of herself and Luna going down a slide. "First trip to the park. Best NYC stroll day ever. I love you, my Lu!"
In just six months, Luna has had quite the impact on her parents. ET sat down with Legend in August, where he couldn’t help but gush about his baby girl.
"You never know what it's going to feel like until it happens, but you know, I was excited," he said about having a child. "And this wasn't an accident, this was something that we have been working on and [we've been] trying to have a family for a while."
"Knowing that it was so important to us, I was pretty excited from the beginning, but once she came out and she was actually a real thing that we could hug and love and see her develop, it's pretty powerful," he added. "It is a pretty powerful emotion to see the product of your love right there in front of you."