Sloe Comfortable Screw Against The Wall Doggy Style

To make a Sloe Comfortable Screw Against The Wall Doggy Style:

In an iced highball glass, pour 1 oz Southern Comfort, 1/2 oz Sloe Gin, and 1/2 oz Galliano. Fill the remainder of the glass with equal parts Orange Juice and Grapefruit Juice. Pour contents of glass into mixing tin and shake. Pour contents of mixing tin back into collins glass. Garnish with an orange slice(optional).