rule 34 2016 4 toes 5 fingers 69 position amber eyes ambiguous gender anatomically correct anatomically correct genitalia animal genitalia avian balls beak bent arm bent legs black stripes blue feathers blue fur cheetah day digital painting artwork digitigrade duo ears up feathered wings feathers feline feral field firi cheetahs foot fetish foot lick forest fur furry only green eyes grey beak grooming gryphon hi res hybrid legs up licking long tail looking up lying male maleambiguous mammal mountain multicolored fur nature no humans nude on back on ground on top open mouth oral orange feathers orange fur outside penis penis tip pointy ears precum quadruped raised arm raki cheetahs realistic sex shaded shadow sheath simple background soft shading spots spotted fur spread wings striped fur stripes tail tuft theowlette tiger toes tongue tongue out tree tuft two tone feathers two tone fur white feathers white fur white stripes wings yellow feathers 2109491