Justine Flanner

Justine is tall and slender, with no real figure, her blonde hair cut unstylishly short, and and a plain looking face. She may be the greatest genius on the show. She appears socially backward, wears no makeup and has no social life in canon. She appears in the occasional fanfiction, but adult appearances are rare.

She is capable of inventing just about anything, as in a time machine in one episode (which, of course, would allow Kim or other characters to have sex with anyone out of history) and might create some sort of device for a friend if asked nicely.

Or, if she decides she need to try romance Kim and/or Monique might give the poor girl a makeover. Dressed and made-up she might find herself popular.