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animal_genitalia animal_penis anthro asinus bubbeh clothing donkey equid equine equine_genitalia equine_penis feral_transformation genitals growth hair hair_growth hands_to_hooves hi_res human human_to_feral male mammal masturbation penis snout snout_growth solo species_transformation tail tail_burst tail_growth tail_growth_in_pants tail_tenting torn_clothing transformation transformation_sequence