Effective simple exercises of thin hips and thin legs should be effective. This question bothers me. Ask for help. If I can recommend some diet recipes, I can buy them anywhere.
Don't run if you want to thin your legs, because it's actually very easy to lose weight by running with long legs and a big belly. Just need your willpower. I tell you to get up in the morning, brush your teeth, drink a glass of light salt water, stay healthy and lose weight. Just drink a glass of water before eating. Remember never to drink water after meals, you will get fat. Not very useful for those diet books. Losing weight ultimately depends on controlling your food intake. Don't eat sugar and high fat. I hope I can help you.