2 (1 fluid ounce) jiggers fresh lemon-lime flavored carbonated soda
1 cup white orange juice
1 (750 milliliter) bottle champagne
2 tablespoons lemon juice
4 frozen orange slices
1 (3 fluid ounce) jigger vodka
Fill mouth with lemon soda. Fill glasses with orange juice. Fill them with champagne. Pour in lemon juice. Fill glasses with lemon-lime soda. Stir gently. Slowly pour in vodka, then serve.