An independent woman can't choose between the two men she loves.
In the carefree days before World War I, introverted Austrian author Jules strikes up a friendship with the exuberant Frenchman Jim and both men fall for the impulsive and beautiful Catherine.
A young woman enters the life of a New York playgirl, after being brutally raped by her stepfather. She soon moves in with a young male doctor, who makes special intimate sessions between government officials and young women.
After returning to Los Angeles from a group therapy session, documentary filmmaker Bob Sanders and his wife, Carol, find themselves becoming vigilante couples counselors, offering unsolicited advice to their best friends, Ted and Alice Henderson. Not wanting to be rude, the Hendersons play along, but some latent sexual tension among the four soon comes bubbling to the surface, and long-buried desires don't stay buried for long.
A Michigan farmer and a prospector form a partnership in the California gold country. Their adventures include buying and sharing a wife, hijacking a stage, kidnapping six prostitutes, and turning their mining camp into a boom town. Along the way there is plenty of drinking, gambling, and singing. They even find time to do some creative gold mining.
Chris is not getting along with boyfriend Sandor and has an affair with parole officer Dennis. Dennis invites the couple to dinner with his ex-girlfriend Jan. At a picnic on the beach, Jan meets lifeguard Phil, who later sleeps with Chris and moves in with the other five. Phil brings in a person, lawyer Elaine. The "group marriage" of the six of them attracts media attention, which brings trouble and prejudice.
Spanning nearly 40 years from 1925 to 1964, two Texas farm boys; straight-arrow Gid and laid-back Johnny fight over the affections of the beautiful and headstrong Molly Taylor, who consistently refuses to marry either of them.
A man and woman meet by chance at a romantic inn over dinner and, although both are married to others, they find themselves in the same bed the next morning questioning how this could have happened. They agree to meet on the same weekend each year—in the same hotel room—and the years pass each has some personal crisis that the other helps them through, often without both of them understanding what is going on.
In the late 1960s, three Harvard students Jessica, Leo and Nick grow close as they undergo personal changes, but their friendship is jeopardized by romantic feelings both men develop for Jessica.
Life imitates art when two Manhattanites — pompous teacher Willie and quiet photographer Phil — become friends after a thought-provoking screening of "Jules et Jim," Truffaut's classic film about a decades-long ménage à trois. Soon, the men meet Jeanette, a sexually liberated southern transplant who promptly falls for both of them. Frustrated passions curdle into jealousy as Jeanette entertains love affairs with each in the ensuing years.
Marriage takes a sour turn when a middle-aged husband falls for a young and sexy woman. Things get even more complicated when his wife starts a hot affair with a younger lover of her own.
Michael Pappas and his girlfriend, Cathy, are enjoying the white sand beaches of a Greek island as well as the freewheeling nature of the locals. When Michael meets Lina, who is in Greece from Paris doing archaeological work, he is enamored with the beautiful foreigner. Cathy, unhappy about Lina getting close to Michael, confronts the woman -- only to be unexpectedly wooed by her charms as well.
TV reporter Rob Salinger longs for a baby. But his career-minded wife, Micki, is too busy for motherhood. A romantic fling with a seductive cellist, Maude, leads to her pregnancy. Rob receives another shock when Micki announces that she's also expecting! In love with both women, he marries Maude and starts leading a double life full of complicated and riotous situations.
The story of Nola Darling's simultaneous sexual relationships with three different men is told by her and by her partners and other friends. All three men wanted her to commit solely to them; Nola resists being "owned" by a single partner.
Pierre is a Montreal photojournalist who returns from Nicaragua to find that his ten-year menage a trois is over. Haunted by his mid-life crisis, he becomes obsessed with trying to find out why his two lovers, Sarah and David, have left him.
The chief of an African village, who is called 'Demi Dieu' because after God he is the owner of all the things, already has five wives. But as this is not enough he decides to find himself a sixth wife so that he has one for every day of the week except on Sunday when he uses to relax.
Prakash, a married man, falls in love with another woman. His wife and girlfriend become pregnant at the same time and he tries to keep it under wraps.
While traveling in Paris, author Henry Miller and his wife, June, meet Anais Nin, and sexual sparks fly as Nin starts an affair with the openly bisexual June. When June is forced to return to the U.S., she gives Nin her blessing to sleep with her husband. Then, when June returns to France, an unexpected, and sometimes contentious, threesome forms.
In 1931, a young soldier deserts from the army and falls into a country farm, where he is welcomed by the owner due to his political ideas. Manolo has four daughters, Fernando likes all of them and they like him, so he has to decide which one to love.
Lola is pregnant, and she isn’t sure who the father is: Félix, a Jewish delivery boy, or Jamal, a black law student.