The Big ImageBoard (TBIB) - age difference anal anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro balls balls deep big dom small sub biped bodily fluids brother (lore) brothers (lore) canid canine canis clothing cum dialogue domestic dog dominant duo english text erection father (lore) father and child (lore) father and son (lore) first person view flint king (character) genital fluids genitals hand holding incest (lore) larger male male male/male male penetrated male penetrating male penetrating male mammal mastiff molosser muscular muscular anthro muscular male nude older male parent (lore) parent and child (lore) parent and son (lore) penetrating pov penetration penile penile penetration penis penis in ass reclining rocky king (character) rottweiler sex sibling (lore) sitting size difference smaller male smaller penetrated son (lore) text thekings (artist) underwear young younger male younger penetrated