Also, thing is, curiosity isnt a sin. Our senses help us to comprehend the things around us. God made food to smell yummy, to appeal to our tummys. He made music to sound so beautiful to appeal to our ears. The touch of a loved one, to arouse different emotions within us. It is us who pervert those things God have made to be good, because we misuse it.
God created sex. Sex is a beautiful expression of love that is to be shared with man and wife. And He created it to feel wonderful. One of the best feelings in the WORLD. We HEAR how good it feels before we're married. We hear other's peoples stories about and see how they react even when thinking about it. And we get curious. Nothing wrong with curiosity. But we sometimes choose to explore and experience before we're really ready to do such.