A steamy novel making the rounds at school inspires Jessi to explore her own sexuality -- and leaves the boys totally confused about what girls want.

When Leah hosts a party for the high school drama crowd, Nick wrestles with a romantic dilemma, and Andrew and Missy witness a disturbing scene.

An argument in sex ed class turns into a skit-tastic journey through the worlds of Planned Parenthood, contraceptives and STDs.

Connie gives Jessi a crash course in female pleasure, Maury tries to talk Andrew into sending a dick pic, and Nick lashes out at his new housemate.

A provocative school musical unleashes Missy's inner thespian -- and her new Hormone Monstress. The "Queer Eye" Fab Five pay a visit to Coach Steve.

After seeing their eighth grade classmates coupled up, Nick and Andrew make a play for two seventh grade girls. Jessi adjusts to life in the city.

A trippy haunted house hosted by Kappa Kappa Kill forces each of the friends to reckon with their biggest fears.

In honor of the show's next-to-last episode, Maury and Connie dive into the "Big Mouth" mailbag to answer curious fans' burning questions.