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5_fingers anal anal_penetration anthro bag ball_gag bdsm begging begging_for_mercy begging_to_stop bodily_fluids bondage bound canid canine canis chair chair_bondage claws clothed clothing dane_(foster-tony)dialogue dildo dildo_in_ass dildo_insertion dildo_sitting dobermann domestic_dog dripping duo english_text fingers fixed_dildo fixed_toy forced forced_anal forced_bondage forced_cbt forced_exposure forced_gag forced_spreading forced_spreading_arms forced_spreading_legs foster-tony furniture gag gagged hands_tied hi_res holding_object itch itching itching_powder jockstrap looking_back male mammal muscular muscular_male muscular_sub object_in_ass pawpads penetration pinscher rape rear_view restraints rope rope_bondage scared sex sex_toy sex_toy_in_ass sex_toy_insertion shaking solo_focus story story_in_description submissive submissive_male sweat tears_of_desperation tears_of_pain teary_eyes text toe_claws underwear