Rule 34 Dev - abs anthro armpit_hair barazoku biceps big_muscles body_hair clenched_teeth dumbbell exercise hair horn huge_muscles lying male muscular muscular_anthro muscular_male navel nude obliques on_back pecs solo tail teeth text vein veiny_muscles weightlifting weights workout chirros mythology dragon mythological_creature mythological_scalie scalie 2021 artist_name greyscale hi_res monochrome|12558596295