Get yo shit. Fill the glass with ice.
Half full of vodka...
Add a good slug of Grenadine, more than you think you need.
Top off with grapefruit. Use the pulpy stuff, it makes your night of drinking into a nutritious experience.
Stir well, mixing up from the bottom, and enjoy! See that gorgeous color? This is a good drink to have in hand while you are cooking dinner for yourself late at night.