The Big ImageBoard (TBIB) - all fours anal anal penetration animal genitalia animal penis anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro big dom small sub blue and white blue line art bodily fluids butt canid canine canine genitalia canine penis canis colored line art cum cum in ass cum inflation cum inside cum on back cum on butt cum pool cum splatter dalmatian dialogue dirty talk doggystyle domestic dog dominant duo english text excessive cum excessive genital fluids eyebrows faceless character faceless male from behind position fur genital fluids genitals hair heart eyes heart symbol hi res inflation knot looking pleasured male male/male male penetrated male penetrating male penetrating male mammal monochrome nude offscreen character penetration penile penile penetration penis penis in ass profanity redrusker sea salt sex simple background size difference sketch smaller penetrated solo focus speech bubble spots tail text tongue tongue out unknown species white background