2020 abstract_background anthro big_muscles big_penis black_body corrursys dragon erection full-length_portrait genitals hindpaw huge_penis long_tail male multi_eye muscular muscular_anthro muscular_male paws penis portrait purple_penis purple_wings restricted_palette scalie smileykitty solo spiked_tail spikes spikes_(anatomy) story story_in_description vein veiny_penis western_dragon wings