Hello I don't know I have sex problem or not, I will tell you exact problem, sometimes before when I do masturbation, sperm come out very large but now after masturbation sperm come out low and but my masturbation time is good, but after seeing any porn or any sexy thing my penis erect but penis or sperm come out easily, so I want to know that I satisfy my partner or not after marriage and I have some stress problem also and this problem only on bed, after seeing porn my penis erect and rub on bed, sperm come out and penis slow down.