The Big ImageBoard (TBIB) - anal anal penetration anatomically correct animal genitalia arthropod ballbusting balls bodily fluids butt canid canine canis cock and ball torture darkmare dobermann domestic dog erection feral feral on feral feral penetrated feral penetrating feral penetrating feral from behind position furgonomics furry-specific piercing genital fluids genital piercing genital torture german shepherd graphite (artwork) greyscale herding dog hymenopteran insect male male/male male penetrated male penetrating male penetrating male mammal monochrome mounting nose to anus pastoral dog peeing pencil (artwork) penetration penis piercing pinscher sex sheath sheath piercing signature tape muzzle tongue tongue out traditional media (artwork) urine wasp watermark