The lives of a motherless young man, who's just starting to find interest in women, and his physically abused, poverty stricken friend, are mixed with more or less innocent childhood experiences and challenges most their age experience.

In 1965, a young woman with dreams of becoming a writer has a son at the age of 15 and struggles to make things work with the drug-addicted father.

A young man awakens from a four-year coma to hear that his once virginal high-school sweetheart has since become a centerfold in one of the world's most famous men's magazines. He and his sex-crazed best friend decide to take a cross-country road trip in order to crash a party at the magazine's legendary mansion headquarters and win back the girl.

A mischievous, adventuresome fourteen-year-old girl and her best friend begin following an eccentric concert pianist around New York City after she develops a crush on him.

A Japanese tourist, Tokio, meets a 15-year-old Hong Kong girl and her grandmother left behind in Hong Kong while their family emigrates to Canada.

At 19, Niko is still a real "milk boy" and wants to finally experience his "first time". When his parents are celebrating away from home, he wants to take advantage of the "storm-free booth" and invites the pretty Angelina. But she's not coming alone and Niko's friend Luke is also planning to hold the "mega party" at his place. He tries to prevent the worst from happening, but then someone hits on "his" Angelina. The initially inconspicuous but profound Sophie tries to distract Niko and suddenly he is caught between two women. At the excessive climax of the party, when young people from the whole area are celebrating in the garden and an indie band is playing, the parents burst in...

Justin Cobb, a teenager in suburban Oregon, copes with his thumb-sucking problem, romance, and his diagnosis with ADHD and subsequent experience using Ritalin.

18-year-old school boy Helmut falls in love with fellow pupil Britta. He starts working for a Peace movement to get to know Britta. Britta, however, suddenly moves to San Francisco to live with her father and whilst there, finds a new boyfriend. Helmut studies, literature and politics in his home town and have a relationship with another girl from his former school, now studying medicine at the same university but they break up after having an affair with her roommate. Helmut begins a lot of short affairs with different women but still searches for his first girl.

The adventures of three teenage girls - Inken, Vicky and Lena - and their quest to have their first orgasm.

Benjamin, a 16-year-old with lousy grades, switches to a boarding school in order to eventually reach grammar school. Adjusting to his new environment is difficult as he has to struggle with being a teen... specially when he falls in love to the school's dream girl, Malen.

Flo is not quite a normal teenager: While all his friends only think about sex he can't even pronounce the word "S - E - X". But everything changes completely when one morning Flo wakes up from a strange call. His penis, excited for the first time, begins to talk to him. He claims that Flo severely neglected him for 15 years and it's time to release him.

In the sequel of "Ants in the Pants" we again meet Flo and his friends.