CARIBBEAN Romantic relationship

1 1/2 ounces mild rum
1 ounce amaretto
1 1/2 ounces orange juice
1 1/2 ounces pineapple juice
Splash of grenadine

1. Fill cocktail shaker with ice.
2. Add rum, amaretto, and juices.
3. Shake.
4. Strain into a highball glass.
5. Float grenadine on top.
6. Garnish with an orange slice.