Big Mouth

After being snowed in with their families, the restless friends flock to Bridgeton's latest make-out spot. A new classmate catches Missy's eye.

A DNA test leads Nick to uncover a wee family secret. Jay insists on introducing Matthew to the Bilzerian clan. Andrew puts his lovebug to the test.

From itching to grooming to late blooming: There's no shortage of fodder for shame maven Rita St. Swithens in this special episode.

A viral quiz about naughty deeds sparks arguments and unlikely new friendships. Matthew plans a baby shower for Maury.

While Andrew prepares for a momentous evening with Bernie, Nick sets out to meet his secret grandfather, and Jay cooks up some romance for Matthew.

The voice of a slick, new tech accessory hypnotizes people into doing things they wouldn't normally do. Missy grapples with the concept of sin.

Lola hits the jackpot — in more ways than one. Missy takes her dad to Elijah's church. The Birches make a plan to get rid of their new housemate.

Elijah tries to figure out why he doesn't have the same urges as his friends. A jealous Andrew hops a train to Vermont to surprise Bernie.

While Andrew and Nick deal with parental crises, Jessi meets her new sibling, and Matthew realizes he's made Jay into a different person.

A sudden outbreak of body-swapping yields awkward situations and poignant revelations galore.