Rule 34 Dev - anthro balls biped black_nose clothing erection fur genitals grey_hair hair heart_symbol humanoid_genitalia humanoid_penis looking_at_viewer male penis solo text underwear daniruu undertale undertale_(series) bob_(undertale) canid canine canis domestic_cat domestic_dog felid feline felis mammal english_text hi_res monochrome sketch|8981602560