Before the likes of Freud came along, ancient psychological thought recognized that there are different kinds of people who want and value very different things in life. Modern psychology would have us believe that every single person, 7 billion of us, are fundamentally programmed with the same desires and responses. We're now, however, recovering the lost knowledge that different people function on different "operating systems" so to speak.
SJs: These types of people value history, security, structure, and traditions. As such, they'll typically take the conservative view on sexuality in that it's a "socially limited" activity and should be engaged in a responsible manner.
SPs: These types value the "here and now" and primarily seek self-gratification. They're more likely to be very free sexually, not necessarily limiting themselves to a single partner and don't typically get too rooted in a single relationship.
NTs: These types are analytic and value logic and reason above all else. They view sexuality in a very pragmatic scope. Having a single dedicated partner would be preferable and efficient but the core purpose is reproduction. I'm an NT so I speak from personal experience on this one.
NFs: These types are emotionally connected and prefer to think towards the future. They're the most subject to romantic aspects of sexuality and view it not purely as a biological function or a social obligation but as a means to emotionally connect with another person. My wife is an NF so I also speak from indirect personal experience on this one.
For more information on Temperament and MBTI, check
www.mypersonality.info and you can see my personal profile at
midknight129.mypersonality.info