Boozy Watermelon Margarita Sippers

2 large fresh limes
1/3 c. sugar
8 c. cubed seedless watermelon (1” cubes)
2 c. ice cubes
2 c. tequila
1 c. Triple Sec
¼ c. lime juice
Sugar, to rim the glasses, optional

1. Cut one lime into 12 wedges, for garnishes.
2. Cut the remaining lime into wedges and take the wedges and moisten the rims of 12 margarita glasses.
3. Sprinkle the sugar on a shallow dish and hold each glass upside down and dip the rim in the sugar. Discard remaining sugar.
4. Place half of watermelon in blender and process until pureed.
5. Add half of the following: ice cubes, tequila, Triple Sec and lime juice. If desired add half the sugar. Cover and process until blended.
6. Serve in prepared glasses.
7. Repeat with remaining ingredients to fill the remaining