Prompt: flying wyvern, nargacuga, scalie, wyvern, (by tojo the thief, by Darkgem, by Oouna, by honovy, By TheBigSlick, By phinnherz), explicit, humanoid genitalia, anthro, male, penis, (balls, backsack), humanoid penis, black penis, rear view, anus, presenting hindquarters, forest, genitals, solo, black body
Negative prompt: bad-artist boring_e621 easynegative, signature, watermark, text