I am an Christian and while I learned while growing up that it is best to mostly think about heavenly things and the best love is the kind of love that is pure as in love is patient, love is kind, love does not envy, etc.; I do not think of most sexual fantasies or masturbation as wrong. They are pleasant diversions that do not hurt anyone.

Without sex, there wouldn't be billions of people on this Earth and my marriage never would have lasted so long. I think of sex as a way to express to another person how much you care for them. It needs to be an activity that is desired by all who participate. When it is forced, corced, or someone is tricked into it, it can cause a lot of confusion and emotional trauma. Sometimes masturbation can be a great go to when you need a sexual release for whatever reason including enabling you to more easily wait until the time is more convenient for your partner or until you meet a partner.