Genre: mutant!AU, general
Summary: The boys stop their studying as Jungsu tells an important math story about horses. Jaejoong gets the moral of the story.
A/N: this is a oneshot from my mutant!series.
Siwon glances over at the complicated math that is Kyuhyun’s, and grins. “You sound as if it’s been a decade since you were in school, hyung.”