When my sub has been extra nuaghty I place clothes pins all over her milk cans & watch her squirm. I just love watching her try to wiggle clothes pins off of her hot tits. She knows there is no way to escape clothes pin torture however she always tries anyway. I don not know which I enjoy more: Clipping her boob flesh with clothes pins, or clipping her nipples with them. the tender flesh surrounding her areolae is soft & supple, & movies bite into it so nicely. On other hand, firmer flesh of her areolae & taps resists clothespins & is in several ways more satisfying to grasp with pins.