I think it is normal for girls to like boys with abdominal muscles, because such boys represent an attitude towards life. A boy with abdominal muscles shows that he likes fitness and has self-discipline. Such a boy is sunny, cheerful and healthy. So many girls will find such people as boyfriends.

There is also a boy with abdominal muscles who looks very powerful and feels safe, which is very important for girls. Moreover, it is difficult for boys to have abdominal muscles, because they have strict requirements on their usual diet and need to exercise every day, which people without perseverance can't do. Therefore, boys with abdominal muscles should strictly control their diet and exercise to reduce fat every day. Therefore, many people think that boys with abdominal muscles are more self-disciplined and responsible, which can give girls a certain sense of security psychologically.

Secondly, for aesthetic reasons, boys certainly have abdominal muscles, which will bring some visual impact. Many girls think that this shows the beauty of human nature, so boys with perfect abdominal muscles are the most attractive. Therefore, many girls will have a good impression on boys with abdominal muscles and even have the impulse to fall in love.

Generally, girls are weak, and when boys have abdominal muscles, they will give people a strong feeling, so I think girls like boys with abdominal muscles, which is also a psychological supplement. To sum up, I think many girls like boys with abdominal muscles. A big reason is that boys with abdominal muscles look very powerful and attractive. And psychologically, boys with abdominal muscles will bring great security to girls.