Banana Slush Punch

2 ripe bananas
1/2 C. sugar
1 1/2 C. water
24 oz. pineapple juice
1 can frozen orange juice concentrate
1 can frozen lemonade concentrate
1 1/2 C. water
4 liters lemon lime soda

Place ripe bananas, sugar and 1 1/2 cups water in blender. Blend until smooth. Pour into large bowl. Add pineapple juice, orange juice concentrate, lemonade concentrate and 1 1/2 cups water, mix well. Freeze in two gallon Ziploc bags. Remove from freezer about 2 hrs before serving. Serve with lemon lime soda.