rule 34 anal anal knotting anal sex anatomically correct animal genitalia animal penis anthro balls black fur black nose blue background blue fur blue nose blue penis blush brown eyes brown fur canine canine penis claws collar cum cum in ass cum inside erection feline feline penis feral feral on feral fur german shepherd green eyes grey fur group hand on arm interspecies kieran kieran kierish knot knotting leopard looking pleasured lying male mammal marjani marjani character markings muzzle disambiguation on back on top one eye closed open mouth pads disambiguation pawpads paws penetration penis pink fur pink nose raised tail red penis reverse girl position sex sharp teeth sheath simple background snow leopard spots tagme tan fur teeth tongue tongue out vein white fur wolf yaoi 2350329