FURVERT!

abs all_fours anal anal_knotting anal_penetration animal_genitalia animal_penis anthro anus basic_sequence biceps big_muscles big_penis black_nose bodily_fluids bound brown_body brown_fur brown_hair brown_nose butt canid canine canine_genitalia canine_penis canis chest_tuft crouching cuff_(restraint)cum cum_while_penetrated cumshot doggystyle dominant dominant_male duo ejaculation erection extreme_penetration eyes_closed fangs felid five_frame_image five_frame_sequence from_behind_position fur genital_fluids genitals grey_body grey_fur hair handcuffs hands-free huge_penetration huge_penis kneeling knot knotting larger_male male male/male male_penetrated male_penetrating male_penetrating_male mammal metal_cuffs multi_frame_sequence muscular muscular_male nipples nude open_mouth orange_eyes orgasm pecs penetration penile penile_penetration penis precum restraints ridiculous_fit sequence sex shackles size_difference smaller_male smile spots submissive submissive_male teeth thick_penis tight_fit tuft tying vein wfa white_body white_fur wolf