FURVERT!

4_toes anisodactyl anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro anus avian avian_feet backsack balls beak big_balls bird bubble_butt buckteeth butt duo eye_roll feet from_front_position fur genitals green_eyes grey_body grey_fur grin hairless_tail hi_res male male/male male_penetrated male_penetrating male_penetrating_male mammal mating_press mocheccino murid murine open_mouth penetration perineum presenting presenting_hindquarters rat rodent sex smile teeth toes whiskers