What excersize or workout can I do to loose my fat and thunder thighs?

I am a skinny person. However I have always had big thighs and a bubble . I am a guy and do not like this... Is there something I can do (anything) to get rid of these fast? I don't have any money to buy or afford expensive dietary supplements or another diet or any equipment. Ugh! It's just not cool for an eighteen year old!