The ten digits of the product are time, and the single digits are the number of sexual intercourse that should exist during this period. For example, a man in his thirties, 3' 9=27, should have sex 7 times in 20 days, which is about 3 days 1 time, without affecting his health and working condition. This formula applies to adults over 30.
Several standards of high-quality sex life
1, learn to say "no"
Some women often say "no" to their husbands' sexual demands. Couples with harmonious sexual life, both sides focus on meeting each other's sexual requirements, and will strive to overcome the original resistance and learn to say "no".
2. Wonderful balance
In sexual life, each party has to give and receive, and both men and women need to serve each other and accept each other's services. A wonderful balance of giving and receiving happily, actively and completely between husband and wife will make their sexual life always pleasant to both sides.