Step #3 Place pineapple, lime juice, lemon juice, sugar & reserved pineapple juice in mixer or food processor/blender container; cover & mix until smooth.
Step #4 Pour into two 1-quart freezer zipped bags & store bags flat in freezer.
Step #5 Freeze 1-1/2 hrs or until slushy.
Step #6 Stir pineapple slush carefully into whipped cream until slightly mixed, in large bowl.
Step #7 Return to freezer until completely frozen, about 1 hr & serve.