I realize this post is for the middle aged & older generation. I am having trouble keeping my cock hard enough to engage in vaginal penetration. When my wife gives me a blow job, my cock gets hard and stays fairly hard, but not to the point where either of us can enjoy sexual intercourse. I have been searching the web for ideas of what we could do to make things better, when I decided....what better place to ask for help than this site that focuses on sex. Any help, ideas, or suggestions are greatly appreciated. BTW, I've tried Viagra, not sure it works for me.