Rule 34 Dev - animal_genitalia anthro avian balls bear big_penis biped bird black-billed_magpie brown_bear brown_body brown_fur certhioid cloaca cloacal cloacal_penetration corvid duo feathers fur genitals grizzly_bear hair hi_res holarctic_magpie kuruk_(character) magpie_(corvid) male male/male mammal mane mane_hair nude oscine passerine pawpads paws penetration penis raised_tail riding sheath size_difference slightly_chubby tail tail_feathers talons thestory third-party_edit ursine wren wren_(kuruk)|9809556928