"Dangerous Curves" is the fifth episode of the twentieth season of the American animated television series The Simpsons.

In this episode, a family trip to a cabin prompts flashbacks of an early moment in Homer and Marge's relationship and a revelation that they nearly strayed from their marriage five years ago.

Driving with Marge, Patty and Selma, and getting the usual flak from the latter two, Homer angrily kicks them out of the car, unaware they had the map to their cabin destination.

In 1988, Ned barricades unmarried Homer and Marge chastely in separate rooms of the cabin to discourage premarital sex.

In 2003, Alberto comforts Marge, who leaves the party with him for a private airplane ride, while Homer, seeing them in the sky, drives off with Sylvia.

In the present, Homer and Marge meet Alberto and Sylvia, now married with a daughter named Ruthie, and learn of each other's near-affairs.

Homer regrets marrying Marge and, trapped in a ball of their luggage which happened while unpacking, has Ruthie roll him into the woods.

In the present, Homer sees this message, and tries to cut it out of the tree to show to Marge as a symbol of their everlasting love.

The episode's non-linear plot showing various points in Homer and Marge's relationship is a reference to the 1967 film Two for the Road, starring Audrey Hepburn and Albert Finney, and the episode's musical score mimics the film's Henry Mancini score.

[2][3] Homer, Sylvia and Dr. Hibbert sing the Chubby Checker song "Limbo Rock", while a water-soaked Marge resembles Cousin Itt from The Addams Family.

[2] Erich Asperschlager of TV Verdict wrote: "I’ve always enjoyed The Simpsons flashback episodes.