The Big ImageBoard (TBIB) - abs anal anal penetration anthro artist logo artist name bed biceps black body black claws black fur black nipples black nose black pawpads blonde hair blue cap blue clothing blue collar blue eyes blush bodily fluids brown body brown eyebrows brown fur brown hair brown tail canid canine canis claws clothing clothing on floor collar digital media (artwork) dobermann domestic dog duo ear piercing eyebrows from behind position fur furniture genital fluids genitals grabbing both legs hair hat headgear headwear hi res inside jockstrap kneeling knot leaking precum logo male male/male male penetrated male penetrating male penetrating male mammal muscular muscular anthro muscular male navel nipples nude on bed open mouth orange body orange fur pawpads paws pecs penetration penile penile penetration penis penis in ass piercing pillow pinscher precum precum on bed red knot red penis sex tail teeth tongue tongue out triceps tuft underwear vallhound white body white fur white tail