Porn for masturbation needs to be perverted and dirty for jacking. In a word nasty. To begin with let us find something so perverted, dirty and nasty to watch that really gets you in the mood. Now you need to know do you want it to jump right in or do you want it to slow. First you also need to be comfortable. Some have some blow, a little weed, lotion of course, however for the most part just the porn you like and someone to masturbate with is a good start.
As soon as you are ready to start watching the porn some of the best porn is watched with someone else. Now, the options of the porn, some of the best for jacking is gangbang, threesomes, and even glory holes seem to be the best ones for jacking. Next having someone right next to you, even just having a Phone sex porn partner will be key to how hard you will cum.
Finally, you will have the joint masturbation to the porn and that perverted voice (me) telling you how hot and sexy these videos are and how hard to stroke you cock and when we should cum together. By all means let us have more than one.