The male side straightens, the female side hooks the support with both feet, the upper body bends forward to form a 90 degree angle, and the two hands hold the male side’s arms.
Advantages of this method: it is not a general insertion method, the entry angle is different from the general back insertion method, and it has another flavor.
Disadvantages of this method: the difficulty of posture is very high, which can not be achieved by ordinary people.
