In a shaker, combine the pomegranate juice, orange juice, tequila, and triple sec with 4-5 ice cubes.

Shake vigorously until well-blended and shaker is so cold it has frosted over.

Grab a glass, wet the rim with the edge of an orange slice, and dip in sugar.

Pour margarita into prepared glass, and garnish with cut orange slice and pomegranate arils. Serve immediately.