Add half of the sherbet, all the lemon-lime soda, and pineapple juice in a large punch bowl. Using a wooden spoon, stir until the sherbet starts to combine with the liquid.
Add the rest of the sherbet (frozen in balls) on top and garnish (if desired) with fresh berries.
Notes
Storage: This punch is best enjoyed fresh, but if you don’t mind the melted sherbet, store it in an airtight container and enjoy within 2-3 days. Give it a quick stir before serving!