rule 34 2023 animal genitalia animal penis anthro balls biped blep brown body brown fur brown hair canine genitalia canine penis digital media artwork erection fur genitals hair hand on penis hyena knot leaning leaning back looking at viewer male male only mammal multicolored body multicolored fur muscular muscular anthro muscular male nipples no swift penis sitting solo spots spotted body spotted fur spotted hyena tan balls tan body tan fur tongue tongue out yellow eyes 7296503