The Big ImageBoard (TBIB) - all fours anal anal penetration anatomically correct anatomically correct genitalia anatomically correct penis animal genitalia animal penis anthro anthro on feral anthro penetrated bestiality bioluminescence biped black body black claws black fur black pawpads blue body blue fur bodily fluids brown body brown fur canid canine canine genitalia canine penis canis claws countershading cum cum on ground cum while penetrated cumshot digitigrade doggystyle domestic dog duo ejaculation erection feral feral penetrating feral penetrating anthro flynx-flink from behind position fur genital fluids genitals german shepherd gloves (marking) glowing glowing eyes glowing genitalia glowing pawpads glowing penis green pawpads green penis hair hands-free herding dog intraspecies intraspecies bestiality leg markings looking back mako wolfhardt male male/male male on feral male penetrated male penetrating male penetrating male mammal markings mounting nude open mouth orgasm pastoral dog pawpads penetration penile penile penetration penis quadruped sex socks (marking) tail tattoo toe claws tongue tongue out white body white countershading white fur wolf