FURVERT!

alien alien_(franchise)animal_genitalia anthro anthro_focus anus bodily_fluids butt butt_sniffing close-up crouching cum duo ejaculation genital_fluids genital_slit genitals group human justmegabenewell knot knotted_penis lying male male/male mammal musk nose_to_anus on_back penis presenting progression simple_background sniffing solo_focus spread_anus spread_slit spreading sweat teeth trio xenomorph