The Big ImageBoard (TBIB) - age difference anal anal penetration animal genitalia animal penis anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro balls bed big dom small sub biped canid canine canine genitalia canine penis cheek tuft claws clenched teeth dipstick tail dominant duo erection eyes closed facial hair facial tuft father (lore) father and child (lore) father and son (lore) feet fox fur fur markings furniture genitals goatee graphite (artwork) head tuft holding penis incest (lore) kade (x13) kai (x13) knot larger male leg markings lying male male/male male penetrated male penetrating male penetrating male mammal markings monochrome multicolored tail nude older male on back open mouth parent (lore) parent and child (lore) parent and son (lore) pawpads pencil (artwork) penetration penile penile penetration penis penis in ass penis size difference sex sheath signature simple background size difference smaller male smaller penetrated socks (marking) son (lore) spread legs spreading table lotus position tail tail markings teeth toe claws toeless (marking) traditional media (artwork) tuft white background x13 young young anthro younger male younger penetrated