User blog comment:Adventuretimegurl123/OH MY!! HUGE ADVENTURE TIME NEWS!! :D/@comment-5241690-20120813131821/@comment-5242921-20120813164056

Contributor, as soon as you mentioned Fionna and Cake I lost all credibility for your theory. They're fanfictional characters that don't exist and Pen confirmed they will never meet their genderbent counterparts.