rule 34 1500jiangbao abs absurd res anal anal sex anthro autopenetration barazoku biceps big penis biped bodily fluids canid canine canis chained to pole cuff restraint deep penetration dominant dominant male double penetration duo equid equine erection foreskin genitals glans half erect handcuffed handcuffs hi res huge cock humanoid equine penis humanoid genitalia humanoid hands humanoid penis internal anal male malemale mammal masturbation metal cuffs motion lines muscular muscular anthro muscular bottom muscular dom muscular male muscular sub muscular top non euclidean sex pecs penetration penis portal sex prisoner prostate stimulation restraints sex submissive submissive male tears thinking with portals vein veiny penis wolf yellow sclera 9305546