Rule 34 Dev - 2015 animal_genitalia balls blue_hair deepthroat duo equine erection faceless_male fan_character fellatio female fur grey_fur grey_penis hair horse horsecock inside lengthen male mammal multicolored_hair my_little_pony neck_bulge open_mouth oral penis pony red_fur saliva sex straight tongue tongue_out two_tone_hair vein|2105726568