There have been many, many girls in skin-tight latex throughout this manga. List your favorites here. There are too many to make a poll--well, a poll with sustenance--out of. These girls can be main characters, supporting roles or even those one-hit girls on the inside covers of each chapter.
Thus far, I have to say I've got a thing for that old woman in the subway. Not because she's remotely as good looking as either Reika or Kishimoto, but because she's got Kurono thinking that she's the spawn of his despair (with a little help from Nishi).