Frances, although conflicted about her little sister Gloria's upcoming birthday, uses her allowance to buy Gloria a Chompo bar and four bubblegum balls. All the way home from the store, Frances ponders the goodness of Chompo bars and the fact that Gloria is awfully young for that kind of candy, and meanwhile she pops the bubblegum balls in her mouth and squeezes the Chompo bar harder and harder. Gloria does eventually get that Chompo bar, despite more bouts of anguish on Frances' part, but only after even more Chompo-squishing in Frances' hot little paw.
I have a little sister of my own, and although I don't remember being jealous of her on her birthdays (perhaps knowing that mine would be coming only a month later), I was certainly aware of my duty as big sister to do what I could to tame a bit of that irrepressible, busting-out-all-over Little Sister personality. And my sister is a Leo, too! The danger to humanity was extreme. I'm convinced that my occasional necessary squelching of obnoxious little sister behavior helped make her the confident, well-adjusted, and decent person she is today.
It may be big sister Frances who is the exuberant main character in that wonderful picture book series, but often it's the little sisters who star. A book I pored over again and again as a child was Sarah's Room by Doris Orgel and illustrated by Maurice Sendak, in which little sister Jenny yearns to be allowed access to the glories of her big sister Sarah's room, with its pretty wallpaper, dollhouse and tiny treasures. I would never have scribbled on the wall as Jenny did, but on the other hand I was in awe and admiration at Sarah's tidiness - and so I identified, as readers were meant to, with young Jenny - who proves that she is capable of growth and change. Even big sisters can feel the frustration of being too young.