Suggest Methods For Enlargement Of Penis

Im charles, 25 years old, single a gradute
in a bachelor degree.I have a girlfriend
we are in our 4th year in our relationship.
The problem is that she not contented of
our sexual activity because I have a small penis.
There are many times when we have sex that I
reach orgasm and she is still not. Doctor, is there
any vitamins or any food supplement that could make
my penis longer and bigger, and also to make our sex
longer and I will be easy raching orgasm. Hope you
have a solution on my problem.