FURVERT!

anal anal_canal anal_penetration anal_vore anthro anus backsack balls bent_over big_anus big_balls big_butt blush bone brown_eyes brown_hair butt canid canine canis closed_smile d1rteater duo feet_first fully_inside fur gaping gaping_anus genitals grey_body grey_fur grey_hair hair hi_res huge_anus huge_thighs human hyper_gape larger_pred long_hair looking_at_viewer male male/male mammal mouth_closed nameless_(d1rteater)nude overweight overweight_male overweight_pred partially_inside penetration pink_eyes presenting presenting_hindquarters rear_view simple_background size_difference skull skull_head skulldog_(species)smile spread_butt spreading spreading_own_butt thick_thighs vore willing_prey wolf