In a medium-size pan, bring 1 1/2 cups water to a boil and stir in lemon jello until dissolved. Reduce heat to low and add the marshmallows, cream cheese, and mayonnaise. Stir or whisk until all the ingredients are completely dissolved. Turn the heat off.
In the same pan, add the drained pineapple and mix well. Set aside.
In a small chilled bowl, mix the whipping cream until soft peaks are formed. Fold into the jello mixture.
Pour into a 9x13 glass dish and refrigerate until set.
Mix cherry jello into 1 1/2 cups of boiling water and stir until dissolved. Let cool to room temperature.
Once the lemon mixture has set, pour the room temperature cherry jello slowly on the the top and refrigerate until set.