Think about it: they're like little fleshy diamonds that naturally occur on the tips of your tits! And while they don't really register on the Mohs scale of mineral hardness, they can get pretty sharp if you tease just right.
Yes, nipples. Now if we can only figure out a way to make computers and lasers with the power of nipples... Oh wait, it's already been done.
· ANA NEBORAC | L'OFFICIEL (FRANCE) OCT. 2010 BY KOURTNEY ROY MQ SCANS (itr2010.org)