Rule 34 Dev - animal_genitalia animal_penis anus asp_the_wyvern barefoot big_tail bladed_tail blush bodily_fluids cum cum_on_penis diphallia diphallism dragon fangs feral forked_tongue genital_fluids genital_slit genitals green_body green_eyes green_penis green_scales green_tongue hemipenes hi_res horn kotetsu_rexen long_tail looking_at_penis looking_down lying male male_only membrane_(anatomy) membranous_wings multi_genitalia multi_penis nude on_back penis presenting presenting_penis scales scalie sitting slit solo spread_legs spreading tongue wings wyvern|4103957208