Rule 34 Dev - animal_genitalia animal_penis artist_name azeldraws ball_in_mouth balls barking black_body black_fur black_pawpads bodily_fluids bone_collar_tag bottomwear brown_body brown_fur brown_hair canid canine canine_genitalia canine_penis canis chain_necklace closed_eyes clothing domestic_dog drooling ear_growth english_text feral fur fur_growth genitals geometric_background growth hair hands_to_paws hi_res hindpaw human human_to_feral jewelry kneeling long_hair loss_of_dexterity lying male mammal mastiff mid_transformation molosser necklace on_back open_mouth pants pawpads paws penis pink_tongue rottweiler saliva sequence sheath short_tail simple_background solo species_transformation tail tail_burst text tongue tongue_out torn_bottomwear torn_clothing torn_pants transformation transformation_sequence underwear verbal_reaction_to_tf|12503192336