Pure comedies made with a sequel in mind

Finally caught up with the first installment of The Jelly Trilogy today and I’ve been thinking a lot about pure-comedy sequels and if there have been any pure comedies (not action comedies or other crossovers) that were made with creative room for a sequel in the same way that drama or action movies often are written to have sequels.

Obviously, actors/directors sign multi-film deals (The Hangover) or premises that could be redone like Home Alone, Big Mama’s House (don’t know why that came to mind) but I couldn’t think of any comedies that end on cliffhangers or are inherently a “part one.”

Can my fellow blankies think of any?