We humans tend to have an affinity for labelling issues as 0% or as 100%. So only the two extremes get all the attention--and we have to choose one of the two extremes. No shades of grey allowed.
This article should be helpful as we learn how to put sexuality in its proper perspective in life. And that means different people come to different conclusions.
And we need to understand that just as the purity culture might have warped some people's psychology, so too has the promiscuous culture. Neither should be claiming to be "the answer."