rule 34 abs animal genitalia animal penis anthro balls biceps black nose black penis blue the unknown blue fur blue tail canine cheek tuft countershading dipstick tail equine penis erection eyebrows fangs fox front view fur gradient background hands behind head cock licking licking lips looking at viewer male male only mammal medial ring multicolored fur multicolored tail muscular muscular male nude open mouth open smile pecs penis pink tongue portrait pose precum red eyes simple background smile solo standing tachikoma kusanagi three quarter portrait tongue tongue out tuft two tone fur two tone tail yellow fur yellow tail 2236438