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Season 1 of Big Mouth consists of 10 episodes.

The season premiered on September 29th, 2017.

Plot overview

As Andrew falls under the spell of the randy Hormone Monster, his buddy Nick becomes obsessed with the lack of changes in his own body.

Trailer

Episodes

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1. MV5BM2ViYTM0ZjktYmU5Yy00ZDczLTk1MjEtMDA2YjJkNmZjOTNlXkEyXkFqcGdeQXVyMzQ5MDUwMDE@. V1 "Ejaculation" September 29th, 2017
As Andrew falls under the spell of the randy Hormone Monster, his buddy Nick becomes obsessed with the lack of changes in his own body.
2. MV5BM2VjYmVmNTItMjM4Yy00NDA0LThjZDQtOTRiNWY3YzkwMWI2XkEyXkFqcGdeQXVyNDYyNjgxNTg@. V1 "Everybody Bleeds" September 29th, 2017
A field trip goes from awkward to mortifying as Jessi navigates the demands of coupledom and gets her first period—inside the Statue of Liberty.
3. MV5BNzIzNTgxNDM4MV5BMl5BanBnXkFtZTgwMDQyNzIwNDI@. V1 SX1777 CR0,0,1777,999 AL "Am I Gay" September 29th, 2017
A trailer for a new movie starring The Rock leaves Andrew questioning his sexuality. Jessi and Nick's budding romance turns ugly fast.
4. MV5BNDQ5YzMwMTctMmZmNy00NmI3LWE3MTMtY2EwZGE1NDY1ZTFiXkEyXkFqcGdeQXVyODEyMzI2OTE@. V1 SX1777 CR0,0,1777,919 AL "Sleepover A Harrowing Ordeal of Emotional Brutality" September 29th, 2017
While the boys head to Jay's for a testosterone-fueled sleepover, Jessi throws a party of her own and gets caught up in mean-girl drama.
5. MV5BMGE2NDFjMWUtMTEyMi00MmFlLTlhMDYtMzA5NTU0YWNlY2UzXkEyXkFqcGdeQXVyODEyMzI2OTE@. V1 "Girls Are Horny Too" September 29th, 2017
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.
6. Pillow Talk "Pillow Talk" September 29th, 2017
Nick drags Andrew into the city to visit an old camp crush, but the day doesn't go as planned. Jay embarks on an emotional journey with his pillow.
7. 44843-7-1-1506668400-3788998374-xlarge-608x342 "Requiem for a Wet Dream" September 29th, 2017
Andrew Glouberman struggles to keep the Hormone Monster in check as he works with Missy on a science fair project; Jessi and Matthew have fun at Jay's expense.
8. Head Push ibx "The Head Push" September 29th, 2017
When Leah hosts a party for the high school drama crowd, Nick wrestles with a romantic dilemma; Andrew and Missy witness a disturbing scene.
9. I survived ibx "I Survived Jessi's Bat Mitzvah" September 29th, 2017
Family blowups, secret liaisons and an unflattering dress make Jessi's bat mitzvah a night to remember.
10. Screenshot 20180316-135440 "The Pornscape" September 29th, 2017
While attempting to drown his sorrows, Andrew becomes hopelessly addicted to porn; Coach Steve becomes a suspect in a murder spree.