Rule 34 Dev - 2013 ? black_penis blue_skin blush brown_hair clothing cum cute cutie_mark english_text equine erection furry gay girly green_hair grey_background hair hat headgear horse horsecock looking_back looking_up male multicolored_hair nude panties penis plain_background pony precum seth-iova shirt short_hair standing testicles text thick_thighs thighs underwear undressing white_hair white_skin yaoi|263105