P.B.Ribbon's definitions
The most supreme of all sexual positions, includes two (2) midgets and a normal sized person. While the normal size person is making out with the midget, who happens to be sitting on the other midget's shoulders. The bottom midget simultaneously performs oral sex (blowjob) on the normal sized person, thus creating the double-decker threesome.
The double-decker threesome in the episode of Little People Big World last night, gave me a raging boner.
by P.B.Ribbon December 2, 2010
Get the double-decker threesomemug.