2017 5:4 5_fingers animal_genitalia anthro anus auto_penis_lick black_penis blue_eyes blue_tongue chewycuticle digital_media_(artwork) dragon elektro_(maxwell1394) erection genital_slit hi_res horn licking long_tongue male masturbation membranous_wings nude open_mouth oral penis presenting presenting_penis purple_skin simple_background sitting slit solo spade_tail spread_legs spreading tongue tongue_out wings