Try reading the book:
"The secret Taoist Way to Good Sexual Health"
Also recommended reading: "The Art of War".
You want to last long and don't come ???
Then don't too deep into enemy territory, or you will be
overwhelmed.
Attack the enemy at its door, and the enemy's will shall be
broken.
When the will is broken and the enemy resistance is weak, seized
the advantage and make your attack penetrating and deep.
You will be the conqueror and the King of the Hill.
