1, physiological and psychological factors. Men are naturally aggressive, and women are naturally self-protective. And those legs are the most vulnerable parts of the whole body, so they often subconsciously and protectively close their legs;
2; Skinny legs are needed. It is every MM's dream to have a pair of beautiful legs. If the figure is eight, you can tighten the leg muscles and achieve the goal of stovepipe;
3. From an aesthetic point of view. Generally, such girls are ladies, and this action will have a delicate, lovely and naughty feeling. If you don't believe me, do a poll to see which one they think is more acceptable and liked, the outer eight-character mm or the inner eight-character mm.