1/2 cup cream cheese (softened)
3 large egg yolks
14 ounces sweetened condensed milk
  Grated zest of 2 key limes or 1 regular (Persian) lime
1/2 cup plus 2 tablespoons key lime juice
  9-inch graham cracker pie crust
1 cup heavy cream
1/3 cup Sugar
  lime slices (as garnish)