High Quality Content by WIKIPEDIA articles! Jack Harcourt Deveraux and Jennifer Rose Horton Deveraux are fictional characters and a supercouple from the NBC daytime drama Days of our Lives, whose history spans from 1989 until 2006. The two have been portrayed by more than one actor/actress since their inception, but were originally, most recently and most famously portrayed by Matthew Ashford and Melissa Reeves. Fans have nicknamed the couple "J&J" or JnJ" (for Jack and Jennifer) on internet message boards. For their portrayal of Jack and Jennifer`s romance, Ashford and Reeves won Soap Opera Digest Awards for Favorite Supercouple in 1991 and Best Love Story in 1992.