Rule 34 Dev - 2019 all_fours anal animal_genitalia anthro anthro_on_feral anthro_penetrating anthro_penetrating_feral dragon erection fellatio feral feral_penetrated genitals greyscale group hand_on_horn horn hraesvelgr looking_pleasured lying male male/male monochrome on_back oral penetration penile penis rimming scales sex slit spikes syberfab tail tail_tuft teeth trio tuft zoophilia|8085973608