Dude I am a big fan of them. But make sure you get the right 3 people together. Because if one isnt the right guy, you are in for a forgetable night of lousy sex. And no one likes to be left out. And thats what happens if one of them aint the right guy.
Although if you include the closeted married guy from the military or work or the chior director from a predominately African American church (hold on Rita, I been in the same interracial relationship longer than you have been born, so dont try to push race shit at me), if one of those is your third, Dude, you are set!