二人で足指ストレッチ！痛くて気持ち良い癖になるストレッチ--Toe stretches for two! Painful and pleasant habitual stretching

This is a simple stretch for two people. It is easy to do anytime, anywhere, yet it is quite a stretch. You will find that your toes stretch and become gradually warmer. There are no rules on how to move. Feel free to move back and forth, left and right, and find the spot where you feel comfortable. It is more effective if you keep your heels on the floor. It hurts, so take it easy!