six internal organs.
The specific approach is:
The woman is lying sideways on the bed.
Both thighs are flexed forward.
The man is lying on the bed.
The man uses the filigree to stimulate the woman's golden groove from the bottom up.
Interact with each other four nines.
That is to say, stop after thirty-six intercourses are completed.
Do this every day.
Not only can it harmonize the blood of both men and women.