Rule 34 Dev - 1boy 2015 animal_genitalia balls barbed_penis big_penis black_fur chest_tuft claws digitigrade dragon erection feral fur furred_dragon glowing glowing_eyes gradient_background green_eyes hi_res knot looking_at_viewer male male_only neck_tuft on_hind_legs open_mouth penis precum saliva sharp_teeth sheath simple_background snarling solo spots syntex teeth tongue tongue_out tuft urso white_fur wings yellow_background|2160789472