Rule 34 Dev - 2015 animal_genitalia arm_warmers balls chest_tuft clothing equine erection fan_character fur grey_background grey_fur grey_hair hair half-closed_eyes hooves horsecock legwear lengthen male mammal masturbation mohawk my_little_pony open_mouth penis plain_background socks solo tongue tongue_out tuft two_tone_hair underhoof vein zebra|1983724600