I think it's possible, but very difficult. While I was in my last relationship, I developed brain cancer, which destroyed my pituitary gland. Just one of the many side effects of this was my body could no longer produce testosterone, which effectively destroyed any desire in me to have sex. My guy was generous enough to stick by me through treatment until I recovered. Eventually, we separated, but not for the sex reason. I believe he would have always been by my side if he could, with or without sex, and I would have done the same for him. Sex for me has always been an expression of love, but I can be equally fulfilled with other means of expression.