Rule 34 Dev - 2022 ambiguous_gender anthro biped bovid bovine cattle dont_touch_rats duo fur greyscale held_by_head held_up hi_res hooves horn human humanoid larger_anthro larger_male looking_away male mammal monochrome mottled mottled_body mottled_fur muscular muscular_anthro muscular_male nude size_difference smaller_ambiguous smaller_human standing tail|12213247232