anal anal_penetration balls bestiality black_body black_scales bodily_fluids cum cum_while_penetrated duo erection feral feral_penetrated first_person_view from_front_position genital_fluids genitals glistening glistening_genitalia green_eyes human_on_feral human_penetrating interspecies lying male male/male missionary_position on_back outside penetration penis scales sex spread_wings wings how_to_train_your_dragon toothless dragon human mammal night_fury scalie western_dragon absurd_res hi_res