The Big ImageBoard (TBIB) - 2015 anal anal knotting anal penetration anal tugging animal genitalia animal penis ass to ass balls barefoot bestiality big breasts black and white bodily fluids breast grab breasts canid canine canis clothing collar domestic dog duo equestria girls equine genitalia equine penis erection eyewear feet feral fur genitals glasses gynomorph gynomorph/male gynomorph on feral gynomorph penetrated gynomorph penetrating hair hand on breast hasbro hi res human human on feral intersex intersex/male intersex on feral intersex penetrated intersex penetrating interspecies knot knotting lactating larger gynomorph larger human larger intersex male male on human male penetrated male penetrating mammal milk monochrome mutual anal mutual anal penetration mutual penetration mutual penile mutual penile penetration mutual penis in ass my little pony nude one eye closed open mouth ouroboros position paws penetration penile penile penetration penis penis in ass plantigrade raised leg sex simple background size difference smaller feral smaller male spike (eg) spread legs spreading teeth tongue tongue out twilight sparkle (eg) upright-infinity vein