Rule 34 Dev - abs animal_genitalia animal_penis anthro arm_grab balls biceps big_muscles big_penis black_body black_fur brown_hair butt canine_genitalia canine_penis claws communal_shower duo erection eyes_closed fangs frottage fur genitals green_eyes hair hand_on_chest handjob handjob_frottage knot locker_room long_hair male male/male masturbation muscular muscular_male nipples nude open_mouth pecs penile penile_masturbation penis penis_grab sex sheath shower standing steam tail teeth tongue tongue_out vein water chris_mckinley wuffamute associated_student_bodies yamatoiouko marcus_paxten canid canine canis mammal wolf 2009 artist_collaboration hi_res|1129438940