ok one thing you need to know stretch marks are like scars, they wont just fade away becasue u lost weight in fact losing weight rapidly can even cause more to appear as stretch marks are caused by rapid expanding and contracting of the skin. a few ways to make them fade is by using a product called bio oil it helps the marks to seem less obvious and turns them to a lighter colour so that they dont stand out, use lots of vitamin e enriched body lotions and shower gels. if you are really desperate to get rid of them u can spring for the expensive laser treatment which makes them fade very quickly but is quite expensive. just dont forget that stretch marks are things that nearly all women have they are just lady lines nothing to be ashamed of. even slim women get them aswell its not anything you shud worry about. xx good luck with the weight loss. xx