Rule 34 Dev - anthro balls claws erection foreskin fur genitals humanoid_genitalia humanoid_penis looking_at_viewer male muscular muscular_anthro muscular_male nipples pecs penis simple_background smile solo towel cottongryph canid canine canis mammal wolf 1:1 2019 digital_drawing_(artwork) digital_media_(artwork) hi_res|9299628975