Grapefruit slices cut in quarters
3/4 c Grapefruit juice
6 oz Tequila
2 oz Triple sec
2 c Cracked ice
Moisten rims of cocktail glasses with cut grapefruit. Swirl in mound of salt to coat edges. Combine grapefruit juice, tequila, triple sec and cracked ice in blender. Blend until smooth. Pour into prepared glasses. Place a grapefruit quarter on each rim.