2. Kneel on the bed with one leg, with both hands shoulder width apart, and lift the other leg backward and upward to tighten the hip muscles, alternating 30 degrees, from less to more.
3. Lie flat on the bed, lift your legs at the same time, and tighten the muscles in the lower abdomen and front thigh.
4. If you have time, you can do leg press in bed to stretch your leg muscles, which will help to lengthen your muscles and make your legs slender.
These are some effective exercises specially designed by my wife for my thick thighs and big hips. It usually takes about two weeks to get dressed and you can see the effect. I keep exercising for two months every year (usually from March to May), so that I can keep my body shape unchanged for one year and practice again at this time the next year. Very effective, but stick to it. Wish you success!