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after_transformation all_fours anal anal_penetration animal_genitalia animal_penis anthro anus arms_tied awarebear balls beard becoming_erect bound canid canine canine_ears canine_genitalia canine_penis claws clothing coat comic describing_another dialogue digitigrade duo ejaculation english_text eyes_closed facial_hair forced forced_anal forced_exposure forced_orgasm fur genitals growth handjob hands_tied hi_res human humanoid_genitalia humanoid_penis lab_coat laboratory male male/male mammal muscle_growth muscular muscular_male mythological_canine mythological_creature mythology nipples nude onomatopoeia orgasm pawpads penetration penile penis research scientific_experiment scientist sex sharp_teeth sheath snout sound_effects species_transformation speech_bubble spread_anus spreading teeth text topwear transformation transformation_sequence unsheathing werecanid werecanine werecreature werewolf