Rule 34 Dev - anthro ass avian biceps big_penis bird exhibitionism genitals hi_res humanoid_genitalia humanoid_penis looking_at_viewer looking_back macaw male male_only manly muscular muscular_butt muscular_male neotropical_parrot nickhiroshi nude parrot penis presenting presenting_hindquarters solo tattoo teasing teasing_viewer thick_thighs true_parrot vein veiny_penis waterfall|11068898040