Rule 34 Dev - animal_genitalia animal_penis big_penis bioluminescence canine_genitalia canine_penis close-up crotch_shot erection fur genital_close-up genital_shot genitals glowing hair knot male nude penis penis_close-up penis_shot simple_background solo lufty aurora_(lufty) canid canine canis mammal wolf 2019 digital_media_(artwork) hi_res|8483020245