Rule 34 Dev - 2016 animal_genitalia animal_penis equid equine equine_genitalia equine_penis erection eyelashes fellatio female friendship_is_magic genitals greyscale hair hasbro heart horse horsecock male mammal monochrome my_little_pony oral pegasus penis pony rainbow_dash_(mlp) saliva tongue tongue_out vsdrawfag|10487647856