Nails, not the metal ones I so favor in more extreme moments, but rather the digging, clawing kinds found so nicely upon your fingertips. They are rather like a built in torture device. They can cause extreme pain - either by digging them into a particularly sensitive area, or by sliding a needle just under its surface.
Right now, I have the urge to dig in my nails and rake away the skin that falls under their rule. I want to leave that mark on her skin. It is a primative, savage marker of my mood - for her to bear. One sided is the pain after its infliction, a temporary high for the giver, a lingering memory for the recipient. Still, there is something to be said for marking what is mine. I like seeing her in pain, even if it is because of a bruise hours, or even days, old.