Rule 34 Dev - absurd_res anthro anus ass ass_focus balls big_butt bouncing_butt bowser bowser_day dg254 digital_media_(artwork) gay genitals hair heavy_balls hi_res horn humanoid jewelry koopa male male_only mario_(series) muscular muscular_anthro muscular_male nintendo nude scalie shell simple_background smile solo spikes tail tongue tongue_out|12078024696