Rule 34 Dev - 2boys anal anal_sex anthro ass_up bernese_mountain_dog black_fur bodily_fluids canine clenched_teeth closed_eyes cum cum_in_ass cum_inside duke_corgi ejaculation floppy_ears from_behind_position fur gay genital_fluids harlem herding_dog jockey_position lying male male_only mammal molosser mountain_dog neck_tuft nude on_front one_eye_closed open_mouth ora original_character pastoral_dog penetration sex short_tail swiss_mountain_dog teeth thick_thighs tuft welsh_corgi yaoi yellow_fur|3779842568