rule 34 2021 abs animal genitalia animal penis anthro biceps blindfold bodily fluids brown body cum detailed background dialogue ejaculating cum ejaculation english text equid equine equine penis erection furniture genital fluids genitals hi res kris zourik lactating lying machine male male lactation mammal milking machine muscular muscular anthro muscular male nipples on back on table pecs penile penis penis milking solo speech bubble table text translated vein veiny penis zourik 5389112