To everyone who thinks they'd better off casting age appropriate kids rather than two full grown adults for the leads, you are all missing the joke. It's a comedy first and foremost, after all. Not to mention given the raunchy storylines, would you be comfortable looking at two teenagers do all the stuff Maya and Anna did?
Great show, full of nostalgia for anyone who has lived through the early 2000s. Kudos to the show creators, and here's hoping for another season.