One of the most fascinating aspects of the Netflix reboot Fuller House has been seeing how the original cast has aged.

Though some, like Lori Laughlin and John Stamos, look nearly the same as they did when Full House wrapped 21 years ago, others, like their TV sons Blake and Dylan Tuomy-Wilhoit, are nearly unrecognizable.

Laughlin highlighted this fact on Instagram yesterday when she posted then-and-now photos of herself with the twins who played Nicky and Alex. Alongside the photos, she wrote "Not so little anymore."

Not so little anymore @zerowbe @dcchillinn Nicky & Alex #fullhouse #fullerhouse

A photo posted by Lori Loughlin (@loriloughlin) on Jul 19, 2016 at 5:59pm PDT

The formerly blonde-mopped cuties have grown into a pair of striking young men.

Though they made a brief appearance on the first season of Fuller House, to reveal that the duo left college to start a food truck selling fish tacos, the entire Donaldson-Katsopolis brood is set to join for more recurring roles in season two.

A photo posted by Dylan Clark Tuomy-Wilhoit (@dcchillinn) on May 14, 2016 at 8:00pm PDT

A photo posted by Blake Tuomy-Wilhoit (@zerowbe) on Jul 1, 2016 at 5:35pm PDT

A photo posted by Blake Tuomy-Wilhoit (@zerowbe) on Oct 8, 2015 at 7:36am PDT

h/t: Today