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How to make your penis larger and longer?

Lotions and pills is completely waste of money as there is no evidence or studies that proved their effect of penis length or its size.
Exercise and stretching penis might be helpful on long time run but also not documented.
Penis pumps and it's a temporary way to enlarge your penis.
Suspensory ligament surgery.
Liposuction and cosmetic elongation.
Lose weight help feeling a large penis.

Is there any relation between sexual intercourse and size of penis?

No the normal penis size range from 10 to 15 cm and it's enough to cause sexual excitement and pleasure to both wife and husband.
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khaled jaber