This little princess is looking all grown up!

Holly Madison, who is expecting her second child with husband Pasquale Rotella, is gushing over daughter Rainbow Aurora, 3.

"Little Bee loves her new dresses from [OC Kids Closet]," the former Girls Next Door star shared on Instagram.

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The reality star, 36, is due to give birth to her second child, a son, in August, and it sounds like little Rainbow was rooting for another princess in the household.

"She really wants a sister," the 36-year-old told Us Weekly before the couple announced their second baby's gender. "So, if it's a boy, I hope she's not too disappointed."

We definitely can't wait to meet the little prince!