Only have sex with people that you love?

I am trying to make some values on what I believe sex should be about. I have always had a fascination with sex and would like to live in a high-sex lifestyle. On the other hand, I value intimacy and I think that, if not controlled, sex can lead to some DISASTOROUS results; ie. unwanted pregnancies, STDs or just a worthless dirty feeling at the end of the day. Now, this friend suggested a compromise, only have sex with people that you love (basically ONLY people that you consider to be your family, people that you would feel totally comfortable sharing ANYTHING else with) By doing this you are creating an intimate, loving environment with people that you GEUNINELY care about; you are not forcing yourself into a no-strings-attached relationship (which I am beginning to think does not really work), you can do a thorough background check on EVERYBODY that goes into the relationship with you (hence no STDs), the relationship will not bring on unwanted pregnancies (it is easy enough to match the kid with their parents and provide them with BOTH the mother and father they deserve) BUT, on the flipside, you are also able to let your imagination go wild and are able to do ALL of the CRAZY things people dream about in open-relationships. I guess what it boils down to is a wild, sexy, crazy lifestyle; but in a safe and secure environment. What do you gus think about this? Any thoughts?