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big_bulge big_butt big_muscles black_hair bodily_fluids body_hair bulge butt canid canine canis chest_hair clothed clothing comic domestic_dog duo equid equine genitals hair hairy hairy_body hi_res hohohonse honse_(character)horse huge_bulge huge_butt huge_muscles hyper hyper_bulge hyper_muscles jockstrap jockstrap_only male mammal muscular nipples pecs penis size_difference sniffing stained sweat text topless underwear underwear_only