rule 34 2023 abs anthro arm tuft balls biped black nose black sclera body hair cabura canid canine canis digital drawing artwork digital media artwork ear piercing elbow tuft english text erection expander genitals green hair green nipples green penis grey body hair hi res hot tub humanoid genitalia humanoid penis looking at viewer male mammal muscular muscular anthro muscular male nipples nude partially submerged pecs penis piercing signature simple background smile soap solo solo male text towel tuft wet white balls white body wolf yellow eyes 9183011