"Big Mouth" is an animated coming-of-age comedy series on Netflix, not a single proper story in the literary sense, but an episodic, character-driven narrative. The show follows a group of middle school friends—Andrew, Nick, Jessi, and others—as they navigate the horrors and humor of puberty, guided (and often haunted) by hormone monsters, ghosts of shame, and talking genitals. If you meant a specific story within "Big Mouth" (e.g., a fan summary, a spin-off comic, or a particular episode's plot), please clarify and I’ll provide a proper narrative breakdown.