I need some guidance. I am 59 years old. I exercise regularly and I eat a good diet. Recently divorced. I am in a relationship with a beautiful woman who is sexually available to me. Several months ago, I discovered to my horror that I had ED. Her patient support and my discovery of Your Brain on Porn have brought me a long way. Now, I regularly get morning wood and sometimes it is middle of the night wood (does that qualify as a spontaneous erection?). Here's my dilemma: I get erect only when she directly stimulates my genitals. Even though our foreplay sets my brain on fire, my body does not respond until she touches me. However, I find her gentle stimulation to be very, very pleasurable. My erection is not a rigid as my morning wood and I lose the erection after 5 minutes even when I have not ejaculated. I am planning to marry her and I want to find a way to maintain my erection longer than 5 minutes. Suggestions, anyone?