Kristy and the Dirty Diapers: The Baby-Sitters Club, Book 89

Kristy is in for a wild ride when her softball team's sponsor turns out to be a diaper company. As if juggling school, babysitting, and sports wasn't enough, Kristy finds herself knee-deep in chaos. The team starts using the diapers for everything from hilarious practical jokes to team mascot ideas, turning every practice into a lighthearted mess.

Meanwhile, Kristy tries to keep the team motivated while managing the fallout of their unconventional antics. With friendships at stake and a championship game on the horizon, she must find a way to balance fun with responsibility. It's a heartwarming and comical tale that showcases the joys and challenges of teamwork, all seasoned with a sprinkle of silliness.