Lolomon, when you retract your foreskin and touch your penis head, it's very sensitive because it has been covered for most of your life. To desensitise your glans, pull your foreskin back in the shower, soap up your penis and touch it as much as possible. At other times, retract your foreskin and apply lubrication such as saliva, baby oil, lotion or vegetable oil to the glans; the more you touch the exposed penis head, the quicker it will be desensitised.
Go to the top of the Men's Health Message Board
and find the sticky headed Stretching To Fix Tight Foreskin (Phimosis)
. Follow those instructions at least once a day for a month and you will be happy with the results.