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When you're a first-time mother, you celebrate every milestone, no matter how big or small. 

And new mom Holly Madison who welcomed baby girl Aurora Rainbow into the world back in March, is no different from proud mamas the world over!

In fact, when we recently caught up with the Girls Next Door star at the Homefront premiere in Las Vegas, she was eager to share the latest development in her little one's life.

"I am loving motherhood," she gushed to E! News. "I have the cutest daughter and she has two teeth already."

They grow up so fast!

But the 33-year-old is relishing her little girl's early years while she can, and has even taken more than one opportunity to coordinate their outfits—something Rainbow might object to in her teen years.

Earlier this month, the mother-daughter duo made for a pretty pair in matching dresses at a Las Vegas park, and Madison even dressed her girl in a blue dress to match her the sash on her wedding gown on the day of her nuptials.

For more on Holly and her little girl, tune in to E! News tonight at 7 p.m. and 11:30 p.m.!