The Simms Twins! Leah Messer & Ex Corey's Daughters Are Growing Up WAY Too Fast

The Simms twins are growing up so fast! Leah Messer's oldest daughters with her ex-husband Corey Simms, Ali and Aleeah, are kicking off their summer vacation in style.

Corey's dad, Jeff, shared some new photos of the 8-year-old girls enjoying some fun in the sun and we cannot get over how big they are getting!

Swim time! Corey's youngest daughter, Remi, was joined by big sis Ali for a dip in her baby pool.

These girls are ready to go!

The proud grandpa definitely enjoys his time outdoors with his adorable granddaughters.

Are you shocked with how big the girls are getting? Let us know your thoughts in the comments section!