In a medium bowl, combine lemon juice, sugar and water. Stir until sugar dissolves.
6 tablespoons lemon juice, 1/4 cup sugar, 1 1/2 cups water
Remove stems and slice strawberries.
6-8 strawberries
In a popsicle mold, add 3-5 strawberry slices and 5-6 blueberries to each cavity. Fill each cavity 3/4 full with prosecco. Fill to the top with lemonade.
1/4 cup blueberries, 750 ml prosecco
Cover and add popsicle sticks. Freeze 4-6 hours, until frozen solid.