Private Summer Slushy

• 24 oz. grapefruit juice
• 24 oz. pineapple juice
• 1 (12 oz.) can frozen orange juice, thawed
• 1 (12 oz.) can frozen lemonade, thawed
• 1/2 cup granulated sugar
• 6 cup cold water
• 16 oz. Private First Class
• Lemon-Lime Soda

Combine grapefruit juice, pineapple juice, thawed orange juice, thawed lemonade, and sugar in a large freezer-safe seal-able container. Stir until sugar dissolves. Add water and Private First Class; stir to combine. Cover and freeze overnight.

Fill a glass 1/2- to 3/4-full with slush and fill the remainder of the glass with chilled 7-Up or Sprite. Serve with a straw.