Rule 34 Dev - age_difference balls bear belly black_nose black_penis blue_eyes blue_tongue brown_eyes brown_fur chest_tuft danzer erection fur grabbing_muzzle grey_fur knox_(artist) legs_in_water male mammal mustelid otter penis pink_tongue polar_bear pool_(disambiguation) precum slightly_chubby spread_legs spreading tongue tuft uncut water yaoi|3099336376