The normal size of a penis
This is not clinical measurement, they are the average results of people who answered an internet survey what we friends have done among 100 males 18-35 yrs.
The average adult penis size is about 6 inches or (15.7cm). penis size 'peaks' at age 17. Since penises do not get smaller as a male approaches age 21, it can be concluded that boys aged 16, 17, and 18 are most likely to exaggerate the size of their penis
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Penis Size and pleasure or performance
The size of a man's penis is more than adequate for its functions which are for sexual pleasure, reproduction and urinating, I have observed that size of penis has no relation to sexual pleasure or performance. Performance is about the ability to get and maintain an erection or to provide sexual pleasure to the partner and himself with or without an erection.
Performance, then, is not directly really related to only size -- but dependent on health, muscles, blood and nerve supply to the reproductive organs.
In reality sexual pleasure is related to: a person's state of mind; to respecting & full filling their partner's needs during performance; and their own needs. During intercourse, the opening of the vagina is not a matter. Because normally vagina is not too small or too large, and not difficult for for any penis totake entry inside because it is really a "space" that is surrounded by muscular tissue and will adapt to most size penis.
There are also many ways to express sexual feeling besides intercourse. Sexual touching and intercourse can involve many different positions, methods, angles, pressures etc. that change the way it feels and may increase pleasure.
If any one want to know more about increasing pleasure or your satisfaction with sexual experiences then experiment , share ideas or talk to someone whom we trust.