Rule 34 Dev - 2017 5_fingers abs animal_genitalia animal_penis animated anthro avian balls beak big_balls big_penis bird black_nose black_penis black_skin blue_skin canine canine_penis closed_eyes cum duo erection green_eyes hand_on_stomach hungothenomster looking_aside loop male mammal multicolored_skin muscular open_mouth oral_vore penis pixel_art saliva simple_background size_difference standing stomach_acid tagme thin_tail tongue uncut vein vore were werewolf white_skin yaoi|2682113976