Don and Ellie Griffin were a
New England couple married for 20 years before they divorced. They have three children from their marriage: Lyla, Jared and adopted son Alejandro, who originates from
Colombia. In preparation for Alejandro's
wedding, Ellie arrives at Don's (and her old) home and lets herself in. She interrupts Don just as he is about to perform
oral sex on Bebe, his girlfriend of eight years (and Ellie's former best friend). All are embarrassed, but they make small talk and he shows Ellie to her room. Meanwhile, Alejandro and his fiancée Missy are meeting with Father Moinighan, the
priest who will be marrying them. It is revealed that his biological mother Madonna is going to be coming from Colombia to the wedding, which upsets him because he does not have a "traditional" family, and it is believed that his
Catholic mother will not approve of that nor the fact that Don and Ellie are divorced. Lyla, who reveals that she is separated, goes to the hospital and, after passing out briefly, sees Jared, an
obstetrician. They talk and it is revealed that he is a
virgin and is waiting for the "right one". Back home, Alejandro tells Ellie that his mother is coming to the wedding. Explaining that, as she is a devout Catholic and does not believe in divorce, Alejandro asks Ellie and Don to pretend to be married for the next three days. Hearing this, Bebe becomes upset with Don and leaves the house. Madonna arrives with Alejandro's biological 20-year-old sister Nuria. Nuria flirts with Jared after she brazenly strips naked to
skinnydip in the family's lake. That evening, the family goes out to dinner with Missy and her bigoted parents Muffin and Barry, and Bebe shows up as their waitress, which surprises everyone. Meanwhile, Nuria starts fondling Jared under the table, and Ellie sees Nuria giving Jared a
handjob. She takes Nuria to the restroom for a chat, telling her that American women are not as forward and desire romance before having sex. When they arrive home, Jared tells Nuria that he wants to have sex, as she had suggested earlier, but she tells him no, asking him instead to do romantic things for her, such as read her poetry. Don and Ellie, meanwhile, end up having sex when Ellie, still pretending to be Don's wife, sleeps in his room. Ellie and Madonna go for a walk in the woods and talk. Neither understands the other's language, although they think they are communicating on some level. At the same time, Don and Lyla talk privately, and she reveals that she is pregnant. On the wedding day, before the ceremony, Don tells Bebe that he had sex with Ellie. Although Bebe says that she forgives them, she still punches him in the face. She also reveals that Ellie cheated on Don with Missy's father before Don cheated on her. Muffin says that she knows about Ellie and Barry, and tells them that she is
bisexual, implying that she is interested in a sexual affair with both Bebe and Ellie. Meanwhile, Missy and Alejandro end up getting married on the family
dock alone to escape the chaos. The family runs after them and, after some of them fall into the lake, the wedding reception takes place. Jared goes upstairs to talk with Nuria, who tells him that she has decided to no longer follow Ellie's advice about being not so sexually available, and they sleep together. Back at the reception, Ellie and Bebe have made up. Don surprises Bebe by proposing to her, and they get married on the spot. Lyla's estranged husband Andrew arrives at the wedding and, after finding out that she is pregnant, reconciles with her. Madonna realizes that she has been lied to about his family, and he runs after her as she starts to leave. But she reveals that her own past was not as pure as he thought, that she too had lied to protect him, and she forgives him. Some time passes and it is revealed that Lyla has had a daughter named Jane, as Don attaches a plaque with her name to their family tree. ==Cast==