FURVERT!

against_surface against_wall anal anthro bent_over bodily_fluids butt butt_grab canid canine canis cum cum_while_rimmed cum_while_rimming domestic_dog door duo erection from_behind_position genital_fluids genitals german_shepherd hand_on_another's_butt hand_on_butt herding_dog inside licking looking_pleasured male male/male male_penetrated male_penetrating male_penetrating_male mammal mastiff masturbating_while_rimmed masturbating_while_rimming masturbation molosser onyxavia open_mouth oral pastoral_dog penetration penile penile_masturbation penis reach_around rimming rottweiler sex tail tongue tongue_out