Proposed Canon
Bennifer is a capital side that existed at the same time as the original kingdom of Faq. In IPTSF Text 32, Jillian describes it as 'shaky' and considers it a possible target for conquest when the predicted fall of Faq occurs.
 Real World
Bennifer is a portmanteau of two people's first names: Jennifer and Ben, used by the tabloid media when talking about the couple.