Rule 34 Dev - abs amber_eyes anthro balls biceps big_balls big_muscles big_penis biped bottomwear claws clothed clothing denim denim_bottomwear denim_clothing erection fangs flexing genitals grin horn jeans looking_at_viewer male masturbation membrane_(anatomy) membranous_wings muscular muscular_anthro muscular_male pants pecs penile penile_masturbation penis pose presenting presenting_penis smile solo standing tail teeth thick_penis topless undressing vein wings yellow_eyes narse bad_dragon mythology duke_(bad_dragon) dragon mythological_creature mythological_scalie scalie 1:1 2009 digital_media_(artwork) official_art|130220720