Rule 34 Dev - 1boy 2016 abs alpha_male anatomically_correct anatomically_correct_penis animal_genitalia animal_penis anthro beefy biceps big_penis clothed clothing cocky daddy equine equine_penis fasttrack37d grey_background greyscale half-erect hand_on_head hi_res horse horsecock jockstrap looking_at_viewer male male_only mammal mane manly medial_ring monochrome muscular muscular_male pecs penis poking_out precum remidragon seductive selfie shirt simple_background smile solo tank_top thick_penis underwear vein veiny_penis watermark|2464328776