rule 34 absurd res anal anal vore anthro anus ass avian avian feet balls bird claws clothing corvid corvus genus crouching duo evil grin feathers feet fin fish genitals glowing glowing eyes hair hat headgear headwear hi res humanoid feet humanoid genitalia long hair macro male malemale marine muscular oscine passerine pawpads penis plantigrade raven scar shaded shark sharp teeth simple background size difference smaller male smile spikes spread legs spreading tail tail feathers tail fin teeth teeth showing vore xcoreus 9113918