Former Dance Moms star Maddie Ziegler, 13, has grown up right before our very eyes — and in her latest selfie with sister Mackenzie, 12, she's proven that she's not a little girl anymore!

"Sisters," she wrote as the caption to the photo of both girls rocking a face full of makeup.

MORE: Maddie Ziegler Named "Ugliest" Dancer in Bonus 'Dance Moms' Clip

To see how much the rest of the Dance Moms cast has changed over the years, click through the gallery!