Rule 34 Dev - 2016 3d 5boys abs achilles aftermath anatomically_correct anatomically_correct_penis animal_genitalia animal_penis anthro balls biceps big_balls brown_fur brown_hair centaur chest_hair chiron comic digital_art edit equine_penis erect_penis forest fur furry horsecock male male_only mammal multiple_boys muscles muscular nipples nude outdoors penis priapus_of_milet size_difference stallion taur testicles the_education_of_achilles toned vein veiny_penis yaoi|2361314208