rule 34 2013 against tree alternate version available animal genitalia animal penis autumn avian balls beak big tail black beak black claws blue eyes blue light blush brown feathers brown fur claws closed eyes cum cutaway detailed background digital painting artwork duo egg feathered wings feathers feline female feral flower forest fur furry only grass grey feathers grey fur gryphon handpaw hybrid internal knot knotting legs up love male mammal mane markings multicolored fur namugriff night no humans on top open mouth open smile orange fur outside pawpads paws penetration penis penis base pink pawpads pink penis pink tongue plant pussy juice semi anthro sex shaded signature sitting small balls smile soft shading spinton nocturne spots spotted fur spread legs spreading star story at source straight theowlette tiger tiger stripes tongue tree two tone feathers uterus vaginal penetration white feathers white fur white markings wings yellow beak 2132818