Follow Your Passion: A Seamless Tumblr Journey
You need to get them a size bigger. Female body shapes are different then men, meaning you will carry more fat or muscle in the thighs, which also means that they will probs roll up and it's uncomfortable. You can try your normal size if they're too big, but if they are rolling up, getting a bigger size is okay and it's nothing to do with your weight, it's just the difference in body shapes (which doesn't make you less of a man.)