I shall outline this idea I recently started to formulate. That is, if there are prostitutes in the world, I am saying if their existence is taken as granted, it is almost only moral to sleep with them. I should elaborate on my conclusion a little more before I even indulge in laying out my analysis. Sleeping with prosistitutes is not the only moral thing to do in my opinion, but considering the difficulty and costs of its alternatives, this seems to be the only sound short-term solution to the problem. Now I can begin to establish my reasoning process.
I heartily believe that problems happen for a reason. In other words, there is always one or a set of causes or conditions to be met for a certain problem to arise and remain alive. I will expand this at some other time.