Billy is a high school boy with a problem: He can’t get to second base with his girlfriend Jennifer. She loves intimacy in films, but not in their real life.

The next day Billy and friends are girl watching in the food court. Then a mysterious, sexy twenty-four-year-old woman named Irene asks Billy out on a date.

Irene drives Billy to an isolated farmhouse, where she deflowers him.

But the house is also occupied by Irene’s estranged widower father Richard, who has become an abusive, alcoholic child molester, jealous that Billy is now having sex with his daughter.

The violent mind games from Richard escalate and Billy is injured when thrown down the stairs.

Irene and Billy escape to the city, but he realizes that Irene had kidnapped him eleven years previous, when he was four.

But then Billy has a seizure in a coffee shop. Irene can’t stop the police from taking Billy to the hospital.

Billy’s brain injury is cured by surgery. But Billy refuses to explain to the police and Jennifer why he ran away from home (to get laid).

Billy loves Jennifer, so when Irene tries to kidnap him from the hospital, he refuses but still helps her escape from the police.

Billy finds that the supposedly faithful Jennifer has secretly been dating a bad boy jock named Bubba, who then disgusts Jennifer with his insistence on a ménage à trois.

The fugitive Irene sneaks into Billy’s bedroom, where she and Billy have sex in front of a hidden Jennifer, to punish her for her infidelity.

Irene gets arrested. Billy no longer loves unfaithful Jennifer, rejects her and starts dating her best friend, leaving Jennifer still a virgin, without a boyfriend.

And Billy transitions from being a boy, to a man.