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Based upon "Resonant Excitation Of Sexual Orgasms - Tao Of Love Coupling"
by Newman K. Lin, Ph.D., PE, a bridge between the Eastern Taoism Sexuality and the Western Engineering Science.==> [ORDERING THE BOOK]< =>[Why?]
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Case Study - Teenager's erectile dysfunction for premature ejaculation and no sexual orgasm; she feels nothing inside her!
Reader: 11/8/2000>
hey doc,

my girfreind and i recently started having sex and theres a couple problems. First of all, on some occasions my penis has gone soft while having sex. Also, despite the fact that my penis is over 7", she says she does not feel anythin at some points. It is also frustrating because i am ejaculating very quickly. please help me out doc. how do u not cum fast,

Dr. Lin: 11/9/2000>
Your erection is too soft to let her feel something inside.
The vagina is "designed" as a birth canal. Naturally, the sensory nerves in the lining layer are not sensitively, unless the lining tissues is irritated.
You need a hard erection to exert a pressures against her urethral nerves, so that she can feel good about sex.
And only a hard erection can help you last longer. A hard erection can block the nervous transmission along your urethra tract, as shown in
Once you have a hard erection, you can relax your prostate and don't need a PC muscle exercise (contraction of the prostate muscle) during sex to assist your erection. A simple method to relax the prostate muscle is given in
But, you must have a hard erection without oral or hand jobs.
At the age 18, you are experiencing the erectile dysfunction. Obviously, you have a long history of over-masturbation and over-ejaculation. I wonder you have started masturbation before you reached your 10. The damage is very severe!  You better solve your erectile dysfunction first!

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