I have a problem with my porn where there is some specific image or video I want to get off to, because I find it aesthetically pleasing and like the idea of cumming to it, but when the time comes to crank my hog it just can't bring me to completion, and I have to fall back on one of my "ol' reliables" to bring me over the edge. I think this is exacerbated by the medicine I'm on making it harder to cum.