Sex has been called the original sin - it is neither original nor sin.
-Osho, “Be Still and Know, #1, Q3”
Be a witness of sex too. Don't be the controller of it. Don't try to forcibly bring it under control, remain a witness of it too. Just as you are a witness of everything else, remain a witness of sex too.
It is difficult, because you have been taught for centuries that sex is sin. That concept of sin has been fixed in your mind.
Sin does not exist in this universe -- there is only godliness. Drop that idea. In this universe there is only one -- it pervades all -- it is godliness. It is in the tiniest of the tiny, in the most vast of the vast. It is in the lowest, in the highest. It is in sex, it is in samadhi too. There is no sin here.
This does not mean that I am suggesting that you remain stuck in sex. I am only saying: understand it too as a form of godliness. There are other forms. Perhaps the first level of his forms is sex. And there is a small taste of samadhi reflected in sexual experience, hence so much attraction. When greater samadhis start to happen, the attraction will disappear by itself.
-Osho, “The Mahageeta, Vol 1, #8, Q4”