My sister is dog 1982 and her fiance is monkey is 1981. Both of them is compatible?

Oh, they two are well compatible and matchful. Your sister is a smart lady, and she knows how to manage her fiancé. As it indicates, they will lead a sweet and a happiness life. Don’t worry about her. By the way, the lucky color for your sister is green, she may get some green plant in the house, and the lucky color for the boy if grey.