6 medium ripe bananas
1 (12 oz.) can frozen orange juice concentrate, thawed
1 (6 oz.) can frozen lemonade concentrate, thawed
3 c. warm water, divided
2 c. sugar, divided
1 (46 oz.) can pineapple juice
3 (2 liter) bottles lemon-lime soda
orange slices

In a blender or food processor, blend bananas, orange juice and lemonade until smooth. Remove half of the mixture and set aside. Add 1 1/2 cups of warm water and 1 cup of sugar to mixture in blender; blend until smooth. Place in a large freezer container. Repeat with remaining banana mixture, water and sugar. Add to container. Cover and freeze until solid. One hour before serving, take punch out of freezer. Just before serving, place in a large punch bowl. Add pineapple juice and soda; stir until well blended. Garnish with orange slices, if desired.