You'll need a blender to start off with. Then add six cups of ice, then sugar, strawberries, lime juice, lemon juice, rum, and lemon-lime soda.
Step 1: Sugar
After the ice is in the blender, you will add 1/2 a cup of sugar.
Step 2: Fresh Strawberries
You will need about a cup of fresh strawberries. Then you will cut the stems off of each strawberry. Then cut them into quarters. Once they are cut you can add them into the blender.
Step 3: Lime Juice
You will add 1/8 a cup of lime juice.
Step 4: Lemon Juice
You will then add 1/2 a cup of lemon juice.
Step 5: Rum
Here you will add 3/4 a cup of rum.
Step 6: Sprite
You will then add 1/4 a cup of Sprite or another lemon-lime soda.
Step 7: Blend
Finally, you will turn blender on high on chop until ice is slushy.