Chuck Levine (Adam Sandler) and Larry Valentine (Kevin James) are veteran FDNY firefighters. Chuck is a womanizer and a self-described whore while Larry is a single father trying to raise a daughter and an effeminate son Eric (Cole Morgen). Because of Larry's sadness and obsession over his wife's death, he ends up not changing the primary beneficiary of his pension from his wife to his children within the deadline. His only option is to marry someone but Larry admits that there is no woman he knows that he would trust with his children's future. While on a routine search of a burned building, Chuck is left hanging for his life. Larry catches Chuck and shields him from falling boards from the fragile floor above. They wake up in the hospital and Larry is struck by the reaction of his children being again in the hospital where their mother died. Larry decides to quit being a fireman because he’s afraid of dying and leaving his kids alone. While thinking it over, Larry finds an article about same-sex domestic partnership rights and decides to "marry" Chuck, making him the beneficiary and caretaker of Larry's children. Chuck is reluctant but gives in since Larry saved his life...

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