have you been watching porn for a long time now it could be that you are desensitized from it the normal stuf that made you jizz doesnt get you aroused any more and the stuf really graphic like scripted rape, child porn, beastilaity what ever gets you excited for that reason you should stop looking at porn for starters and remember the time when you did get aroused about normal stuff and use you own imagination because porn and real sex are really different in porn you are treating women like a toy or piece of meat or a drug once you get bored of it you look for more exciting stuff.