Jolin Tsai's legs are really charming. As a girl, I envy her very much. I think Jolin Tsai's legs are straight mainly because there is less meat on her legs, and she won't grow too much muscle after exercise. Besides, she often goes to massage. It is reported that massage is really useful. If you want to straighten your legs, massage first, soften your muscles into fat, and then exercise. The fat is gone, but the most important thing is to press down your muscles. Jolin Tsai once recommended a kind of "varicose socks". She said it could improve your leg shape. You can go to Taobao to see.