Use a hand mixer to cream butter, vanilla and orange juice.
Add ½ cup of powdered sugar. Continue adding powdered sugar ½ cup at a time until icing is thickened.
Add heavy cream. Icing should be smooth but hold its shape fairly well.
Pipe icing onto room temperature cupcakes.
Notes
Food coloring: It's optional, but if you'd like a pretty orange color then you can use food color. Use 1-2 drops of orange or a combination of 1 drop red and 1 drop yellow for a light color. The more food coloring you use, the darker the color will be! So just add as much as you want until you reach the desired color.