Rule 34 Dev - 2018 4_toes akotabird ambiguous_penetration anthro anthro_on_anthro avian balls beak bird black_feathers black_sclera breasts claws corvid feathers feline female gryphon half-closed_eyes hoatzin hybrid larger_male long_tail male mammal nipples nude open_mouth paws penetration penis red_eyes ringed_tail sex simple_background siroc size_difference smaller_female smile soles straight toe_claws toes torso_grab yellow_background|3156120656