I "shoot".. Normally.. It depends on how long you masturbate before cumming (bigger chance for "shooting" if you masturbate for a long time). And it depends on how often you masturbate (because you "shoot" more if you have got more
) If you masturbate 3 times a week and for 30 minutes, you are much more likely to "shoot" than if you masturbate for 2 minutes 3 times a day.