Rule 34 Dev - animal_genitalia animal_penis anthro balls big_penis clothing digital_media_(artwork) equine_penis genitals hair hat headgear headwear hi_res huge_cock hybrid_genitalia hybrid_penis knot knotted_equine_penis lupelongo male mammal mask metal_arm murid murine muscular muscular_anthro muscular_male nipples nude penile_spines penis rat rodent simple_background solo top_hat unusual_genitalia|5066276448