Animal Instinct

Damn... This kind of fandom... Is so awesome... Most of all, I have read their fanfics before, but never the "advanced" ones... Please let me deeply worship you. The OTZ author replied: Sure enough, everyone can guess it... This is actually not a fanfic written for the sake of writing a fanfic, it is entirely a flash of inspiration (or a bolt from the blue?) And bad taste while waiting for the elevator... So I'm sorry if I shocked people T T