Go for it! There is no reason why you can't see how things go. You never know what might happen, this girl may be your dream girl, but you must have some feelings for her otherwise you wouldnt be asking.
When i was 24 i went out with a 17 yr old. we ended up having 2 kids and stayed together for 4 yrs. My last boyfriend was 10 yrs my junior so dont let age deter you from being with someone that you like.
After all age is only numbers.