Watermelon Margarita

Ingredients:
16 oz seeded and blended Watermelon
1/2 Lime
6 oz Tequila
3 oz Triple sec
1 tblsp Sugar

Directions:
Cut up watermelon, removing seeds. Liquify in blender until you have about 16 oz. Add remaining ingredients, top with ice and blend until smooth. Taste and add sugar if watermelon is not sweet enough. This works well with sugar on the rim of the glass.