[SilentWolf] School Girl Memories 4.0 [Pixiv]

Yuuko Hiiragi endures an agonizing second period as a sudden, unstoppable urge to poop leaves her squirming at her desk, thighs squeezed together and panty-covered ass clenched tight while she begs her body to hold on. With her stomach gurgling, soft farts escaping and classmates whispering around her, every second of trying to read aloud or stand at the blackboard becomes a flushed, trembling battle against humiliation. As pressure builds and a faint, sour smell begins to betray her, the promise of an unavoidable, messy accident in her panties hangs heavy over the crowded classroom.