rule 34 2023 abs anal anal sex animal genitalia animal penis anthro avian balls beak big penis biped bird blue body blue fur canid canine canine genitalia canine penis collar collar only duo ear piercing erection eyebrow piercing facial piercing feathers fur gay gay sex generation 4 pokemon genitals gryphon hi res knot lucario male malemale male penetrated male penetrating male penetrating male mammal muscular muscular anthro muscular male mythological avian mythology nintendo nude open mouth pecs penetration penile penis piercing pokemon pokemon species red eyes sex size difference stomach bulge sweet chubbs tail tongue tongue out were wereavian werebird white body white feathers yellow body yellow fur 8791620