The Big ImageBoard (TBIB) - anal anal knotting anal penetration animal genitalia animal penis anthro anthro on feral anthro penetrated balls bestiality big penis canid canine canine genitalia canine penis canis claws crossed arms deep penetration digitigrade doggystyle duo feral feral penetrating feral penetrating anthro friztwolf from behind position fur furgonomics furry-specific piercing genitals hi res internal internal anal knotting larger feral larger male looking back male male/male male penetrated male penetrating male penetrating male mammal multicolored body multicolored fur nude penetration penis piercing pink body pink fur purple body purple fur quadruped sabuke (character) sex simple background size difference smaller anthro smaller male smaller penetrated spade tail tail toe claws white body white fur wolf