On a serious note. Masturbation can have side effects. . .you can decrease sensitivity to your pleasure points. . .
Originally Posted by Badboy_71
I am too lazy to go find the study, but I recall that they also discovered that it could lead to deficient performance, because if you are fairly routine about what you use as stimulation (particular fantasy or porn, or a certain technique) when you masturbate you form a mental addiction to that format that may even make it difficult to get and maintain an erection, as well as having the orgasm difficulties Badboy points out.