rule 34 animal genitalia animal penis anthro balls barefoot blue background blue eyes canid canine canine penis canis claws digital media artwork english text erection feet frenum ladder frenum piercing full length portrait fur furry furry only genital piercing genitals grin heart hi res hindpaw knot ladder piercing looking at viewer lucario male male only nintendo paws penis penis piercing piercing pokemon species pokemon portrait presenting presenting penis shaded simple background smile solo standing tail text thericegoat toe claws video games 6168250