This is a very charming follow up to Go With The Flow, taking place over the friend group's following high school year. Brit, who was diagnosed with endometriosis at the end of the previous book, had a surgery to remove it over the summer. When she goes back to school, she finds her affection caught between two different boys. Christine has finally admitted to herself that she likes Abby as more than a friend... but telling Abby that is another matter. Abby is still working on her campaign of menstrual justice on campus, while Sasha struggles to balance her homework, sports, and time with her boyfriend. The girls learn, grow, make mistakes, and support each other.