Nicky and alex katsopolis grown up

If you're a die-hard Full House fan (and who isn't?!), surely you remember Nicky and Alex, the adorable, toe-headed toddler twins of Jesse and Rebecca Katsopolis (John Stamos and Lori Loughlin).

The boys, played by Blake and Dylan Tuomy-Wilhoit, are now — ready to feel old?

Nicky and alex katsopolis grown up

— 27 years old (!). And, not surprisingly, they've been a part of the Full House reboot, Fuller House.

Blake and Dylan may not have been household names over the past few years (or even acting), but these former-child stars certainly have kept themselves busy.

Here's what they've been up to since they were famous for causing mischief in the Tanner household.

Their older Full House characters are almost as adorable as their younger ones.

In Fuller House, the boys are back, but instead of being mischievous five-year-olds (which is how we last saw them), they're in their 20s and own a taco truck.

Also, not surprisingly, they've got a light-hearted, fun-loving surfer vibe going on. (They've also obvious