rule 34 2023 abs absurd res animal genitalia anthro balls biceps brown body brown fur casual nudity digital media artwork digital painting artwork forest fully sheathed fur genitals hi res low angle view male mammal muscular muscular anthro muscular male muscular thighs mustelid navel night nipples nude outside pecs plant pose quads s anima sheath solo tail tan body tan fur thick thighs tree water were weremustelid wereotter wet whiskers 8775528