Series: BullDog (Becquerel X Tinkerbull by wolftacos)

Blacklisted
ambiguous_gender animal_genitalia becquerel bestiality bovid bovine canid canine canis cattle conditional_dnp digital_drawing_(artwork) digital_media_(artwork) domestic_dog duo eyeless feral fully_sheathed genitals homestuck horn insect_wings male male/ambiguous mammal monochrome ms_paint_adventures open_mouth paws sheath simple_background sketch sniffing tinkerbull tongue tongue_out wings wolftacos
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animal_genitalia animal_penis becquerel blush bovid bovine canid canine canine_genitalia canine_penis canis cattle conditional_dnp digital_drawing_(artwork) digital_media_(artwork) domestic_dog duo empty_eyes erection feral genitals homestuck hooves horn insect_wings licking male mammal monochrome ms_paint_adventures oral penis penis_tip sheath tinkerbull tongue tongue_out white_eyes wings wolftacos
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animal_genitalia animal_penis becquerel blush bodily_fluids bovid bovine canid canine canine_genitalia canine_penis canis cattle conditional_dnp digital_media_(artwork) domestic_dog drooling duo erection fellatio feral genitals homestuck hooves horn insect_wings knot licking male mammal monochrome ms_paint_adventures oral penile penis saliva sex sheath solo_focus tinkerbull tongue tongue_out tongue_out_blowjob wings wolftacos
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69_position animal_genitalia animal_penis balls becquerel blush bodily_fluids bovid bovine canid canine canine_genitalia canine_penis canis cattle conditional_dnp cum digital_media_(artwork) domestic_dog duo erection feet feral genital_fluids genitals hindpaw homestuck hooves horn insect_wings knot male mammal monochrome ms_paint_adventures oral pawpads paws penis sex tinkerbull tongue tongue_out wings wolftacos
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