rule 34 2023 animal genitalia animal penis anthro artist name australian shepherd balls barefoot birdpaw artist black eyes bodily fluids breath canid canine canine penis canis countershading cum cumshot digital media artwork domestic ejaculation fangs feet floppy ears fur genital fluids genitals green sclera grey nose guide lines hair herding hi res holding object holding penis kanon applejacksville knot male mammal masturbation musk neck tuft nude one eye closed orange body orange fur pastoral penis pink penis sheep simple background sitting sniffing solo sweat tail tail motion tail tuft tailwag tan background teeth tuft white balls white body white countershading white feet white fur white hair white hands yellow body yellow fur 7270927