Interesting! Thinking back about the women I have, um, known I would say about half wanted sex a lot (by which I mean say, twice or more daily). These ladies were also the most skilled and, IMHO, exciting lovers--so, naturally, I wanted it more, too!
Perhaps it is as simple as if you are good at sex it gives you more pleasure so you like it more and you get better at it, and around and around. (Who said "life is like a wheel"?)
One woman withwhom I have had a long-term relationship suffered abuse as a child both by witnessing her mother being abused by her father, on a family level (i.e., alcoholic, gambling, irresponsible father) and, she believes, personally at his hands. I am no expert, but from what I have read and experienced in my relationship with this woman I would say that the abusive experience had significant negative effects on our relationship, sexual and otherwise.
