Rule 34 Dev - abs animal_genitalia animal_penis anthro balls biceps big_balls big_muscles big_penis biped brown_body brown_fur brown_hair clothing equine_genitalia equine_penis erection flexing fur genitals hair hat hat_only headgear headgear_only headwear headwear_only male mostly_nude muscular muscular_anthro muscular_male nipples pecs penis simple_background smile solo vein veiny_penis white_background white_body white_fur manlyshark brett_(bluefoxyboi) equid equine horse mammal hi_res watermark|3756478390