I am quit sure you can do this, I am a really short, my ex was much taller then me and we did it just fine. There are many different positions you can do a 69 in. The best advice I can give you is to try it, if you find it uncomfortable on you then switch around or bend a knee, although I don't know how flexible you are, but you could lay on your sides and bend a knee over so he is able to have access to you without a problem.
LOL Johnny love the mental picture you gave!! |