Support the girl with your upper body and stretch her using your arm.4) Back stretching
Spread the feet to about the width of the shoulders, bend the upper body to the back.
The boy fixates the girl's arm and stretches it will all his strength, and tickles her flank with his free hand. This is probably the weakest spot.3) Elasticity
Place hands on knees, then repeatedly bend and stretch the knees.
Just like before, the boy acts as support for the girl. In this case, it's effective to use an electric massager for the crotch massage. Do not let it slip away from the crotch by any means.Exercising together with an idol
Gymnastics manual 2/4