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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 Title:  On the effect of the vaginal/cervical secretion on penile erection /ballooning and premature ejaculation. Why one tight vagina makes him erect harder and last longer for sexual orgasm , but the other tight one promotes his premature ejaculation?
Reader: 3/29/2003>

Two women can be vEry different having sex with,

One girl i have had sex with, i can never
last longer than to her orgasm.

With another girl,
i can go on as long as i want
and really control my ejaculation,
sex in this was also seem to
make my erection much stronger.
Their vaginas seem to be just as tight
and deep.

What i wonder is:
What is the big difference between these two
women you think??


Dr. Lin: 03/30/2003>

The natural vaginal or cervical secretion during sexual arousal contains 2 major hormones - ProstaGlandin E-1 (PGE-1) and E-1 (PGE-2). The vaginal/cervical secretion promotes penile erection and ballooning with PGE-1 but causes premature ejaculation with PGE-2, when the secretion penetrates into the male urethral duct. It is like you inject PGE-1 into your urethra for promoting penile erection or/and PGE-2 for ejaculation and orgasm. When the vaginal/cervical secretion contains a higher level of PGE-1 more than PGE-2 , it will help stimulate your urethral nerves for better erection and penile ballooning and let you last much longer. On the other hand, when the vaginal/cervical secretion contains a higher level of PGE-2 more than PGE-1 , it will help stimulate your urethral nerves to trigger your prostate's seminal emission control nerve for ejaculation and orgasmic contraction. You will come very quickly.  In fact, the women whose cervix secrets more PGE-2 during sexual arousal will achieve orgasm much easier and quicker.  All you need is to hold ejaculation back just a little longer so that she will erupt like a volcano. The ratio of PGE-1 to PGE-2 changes from time to time even in the same love session. 
The only solution to last longer with any girls and to have a consistent sexual performance in every love session  is to balloon your penis so that your urethral-prostate nervous transmission can be blocked by the high, internal blood pressure of the penile cylinders due to the penile ballooning effect before a vaginal penetration. In this way, the vaginal/cervical secretion's PGE-2 won't excite your prostate nerve for promotion of ejaculation, while its PGE-1 diffuses into the entire penile spongy tissues to continue ballooning your penis to an extreme. I had used this principle to enlarge my penis by lovemaking when I was in my 23-35 (before my hGH/DHEA/androstsendione/testosterone level drops too low). Basically, the hot and wet vagina (having a lot of PGE-1) is a natural penile enlargement pump. In the Chinese Taoism Sexology, using the vaginal/cervical secretion's PGE-1 to enlarge the penis during lovemaking is called "Extracting the Female Yin to re-nourish the Male Yang."
How do you know if her vaginal/cervical secretion contains a lot of PGE-1?
Well, the erection of her clitoris and G-spot (urethral/vaginal spongy tissues - the spongy ridge above her vaginal ceiling, as shown in http://www.actionlove.com/image/lovetool.jpg  ) will tell you the level of PGE-1 in her love juice. Generally, when her PGE-1 level in the spongy tissues reaches a maximum, her clitoris becomes very shinny and firm and her urethral spongy tissues protrudes like a firm ridge hanging upside down on her vaginal ceiling.

By the way, semen also contains PGE-1 and PGE-2. Similarly, semen will exert the same effect on the clitoris, G-spot, urethral/vaginal spongy tissues and cervix for her erection and orgasm. In a lot of times, women achieve orgasm after a hot semen jet is striking the cervix or the vaginal itching points while their partners can still maintain a hard erection for a few seconds or minutes in the post-ejaculation state. This is why women like a hot seminal ejaculation inside the deep vagina pocket near or on the cervix. If you make her achieve orgasms first, you ejaculation will trigger another orgasm for her.

For more information on the similar subject, please read this link -
Over-masturbation during puberty and PC muscle exercises cause this teenager's premature ejaculation upon penetration for no more sexual orgasm - Here is Why?
==> http://www.actionlove.com/cases/case11025.htm 

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