Rule 34 Dev - 2015 ball_grope barazoku bear blush bovine cattle circumcised collar cowbell cum cum_in_mouth cum_inside duo facial_piercing fellatio furry_only grizzly_bear hands_behind_back humanoid_penis kemono kotobuki male mammal muscular nipple_piercing nipples nose_piercing nose_ring obese oral overweight penis penis_milking piercing sex shackled simple_background standing steam sweat yaoi|3087986192