It's probably stating the obvious by now to say I like my sex to hurt.  There was a time when that wasn't so clear to me, though.  I vividly remember one of the defining moments in my sexual history, when I was fucked by a truly Dominant man - in a BDSM sense - for the very first time.  Bent over with a hand grasping my hair, I was given my very first hard spank, and my response told him all he