Happy Birthday, Ali and Aleeah!

Leah Messer's twin daughters turn seven today — and we can't believe how much these little ladies have grown!

MORE: Corey and Miranda Simms' Baby Remi Cries During Santa Photo With Leah Messer's Daughters

We're sure Leah and dad Corey Simms have loads of fun in store for their growing beauties, but to celebrate their special day, we've rounded up some of their cutest Instagram moments!

Click through the slideshow to see more photos of Ali and Aleeah!