Fill a cocktail shaker with ice. Add the vodka, lime juice and pomegranate juice and shake vigorously. Strain the cocktail into a glass filled with ice.
Garnish with lime rounds and pomegranate arils. (You can also garnish your glass first if you prefer. You do you.)
Notes
This is a very tart cocktail. If you prefer something a little sweeter, feel free to add a splash of simple syrup or a drizzle of honey!